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Summit Bucks
Sonnax shift improver performance packs combine innovative heavy-duty performance calibration for firmer shifts under load without sacrificing low-speed drivability. The precision components in these kits upgrade your transmission for maximum achievement and durability by recalibrating pressures, recalibrating shift accumulation, and including improved parts for areas that commonly wear. They are suitable for any heavy-duty application and are a critical foundation for other upgrades when modifying the transmission for high performance use. Sonnax shift improver performance packs additional facts and features: * Shorter shifts, which get progressively firmer with load * Faster pressure increase and higher overall pressure for greater clutch/band holding power * Three ultra-reliable, patented, billet pinless accumulator pistons * Unique 1-2 accumulator spring combination for shifts with character * Improved high rpm pressure * Third accumulator valve gets the 2-3 right the first time, every time * Consistent results, no guessing on calibration * Prevents worn accumulators and separator plate * Optional TCC on-off conversion prevents excess TCC pressure
( 6 )
$356.54
TransGo's Performance shift kits give you the hard-launching, tire-blazing shifts you want, after just a few hours' work with basic hand tools. TransGo even has kits for computer-controlled, 4-speed automatics. Their performance shift kits can be installed with the transmission in the vehicle and they come with complete instructions. Some kits even include a step-by-step video to walk you through the installation process.
( 505 )
$250.86
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$321.43
Z Automotive TranZformer electronic shift kits transform your car into a neck-snapping, tire-chirping fun to drive beast that at the press of a button, returns to stock. Best of all, they're completely hidden. Available in Gen 1 or Gen 2 kits, you can have your NAG1 transmission shift how YOU want it to. You get to modify shift firmness to fit your driving style/mood, plus a lot more. They install in minutes, connecting via wiretaps into wires hidden behind the steering column lower cover. Once installed, TranZformer kits will modify transmission parameters for that real "old school" muscle car shift feel. Chirp through gear shifts or just firm them up a little for towing or for track use; use your steering wheel buttons and EVIC screen (or cruise stalk/buttons for those without EVIC) to adjust shift firmness on-the-fly, whenever you want; connect to your PC via USB cable to dial-in independent upshift and downshift boost percentages (0 to 100) for each gear in both Drive and AutoStick mode. You can reduce the time delay when shifting into Reverse and Drive, adjust shift firmness scaling based on throttle position, and reset or kill the TCM's adaptive learning system, keeping the TCM from dialing back the shift firmness over time. Select the kit designed for your vehicle. Some of the features and benefits (may vary by kit): * Z Automotive Programming Utility (for Windows PCs only) allows you to program shift parameters, view status, update the firmware, and more * Steering wheel shifting (SWS) allows you to use your steering wheel's buttons to manually control gear shift while keeping your hands on the wheel * AutoUpshift allows you to set your own shift points when in AutoStick * Line Lock mode holds the vehicle with the front brakes so you can hit the gas and do a perfect burnout Peak rpm display: Will display actual shift rpms after each shift--great when adjusting auto upshift to squeeze every last bit out of that high revving cam, or to check what rpm you hit when shifting manually * 0 to 30 and 0 to 60 timer Reset adaptives: Will reset TCM adaptives any time you wish
Not Yet Reviewed
$289.00
TransGo automatic transmission reprogramming kits are designed with performance in mind. Most, but not all models contain additional features like Gear Command that allows you to hold manual low to any speed, and shift back to low at any speed. They are great for strip cars or 4x4 rock crawlers needing to select low and not have it upshift. Most TransGo automatic transmission reprogramming kits can be tuned for HD (Heavy Duty) use by following the recommendations in the kits.
( 39 )
$250.66
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$295.71
You'll have a heavy-duty, reliable transducer when you install BD Diesel valve body electronics upgrade kits. One of the leading causes of faults with automatic transmissions is failed governor pressure transducers, especially if you run higher line pressures. These kits replace the stock plastic transducer with a sturdy metal unit that can handle greater line pressures without failing; preventing over-pressure codes and wild oscillations, thus extending transmission life.
( 12 )
$282.95
aFe ShiftLogic modules greatly improve the transmission shift feel in your diesel rig. The modules modify the transmission line pressure, resulting in improved shift firmness and reduced transmission slippage. They also reduce fluid temperature and extend the life of your transmission. aFe ShiftLogic modules have three different settings to personalize your shift feel, and the adjustment can easily be done with a simple push of the module button. aFe ShiftLogic modules feature: * Plug-and-play installation; no cutting or splicing wires * Ideal for performance driving and towing applications * Works with stock or modified transmissions * Adjustable LED settings; no LED—Stock, orange LED—Stage 1, red LED—Stage 2
Not Yet Reviewed
$408.00
BD Diesel Tap Shifters let you take "manual control" of your automatic transmission when you need to switch gears quickly. With the shift lever's up/down touch-button shifting, you can now determine how and when the transmission will grab another gear upon acceleration or downshift. This is especially useful when you're driving down a long grade or freeway off-ramp, to assist with slowing a heavy load. The new Tap Shifter system revolutionizes the way you control your truck. Order the model recommended for your vehicle application. Includes: * Gear shift lever * Underhood control module * Plug-in wiring harness
( 1 )
$482.95
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$509.95
In this corner, weighing in at a svelte 8.2 lbs., are FTI Performance billet aluminum trans-brake valve bodies. These lightweight wonders are so quick, you'll need to add time to your delay box. To eliminate inconsistencies from steel valves in aluminum cavities, FTI uses an adjustable regulator with a steel regulator valve and valve bore. Think safety and include a trans-brake lockout system (not included), preventing accidental engagement during motion. For guaranteed stoppage and incredibly quick release times, buy FTI Performance billet aluminum trans-brake valve bodies.
( 4 )
$499.00
Don't leave anything on the table at your next race! Step up to a Summit Racing™ billet aluminum trans-brake valve body—and take full advantage of your race car's ability. These automatic transmission units are lighter than OEM steel versions; and their solid design is more rigid than veined factory models, improving strength. Summit™ valve bodies also omit the unnecessary fluid channels found in OE-style units, providing a more direct fluid path. This improves trans-brake performance and shift quality. Increase your transmission performance with the billet aluminum trans-brake valve body recommended for your application. Other benefits: * Achieve maximum torque converter stall * Quicker and more consistent reaction times and 60 ft. times * Prevents engine torque load from transmitting thru drivetrain prior to launch * Trans-brakes perform in much the same way as a manual clutch
( 9 )
$535.99
Get maximum performance and quicker ETs with these TCI full manual valve bodies. They're engineered to allow full manual control of the valve body, for quicker shift timing and higher line pressures. You get less clutch slippage under high load, so that more power gets to the ground. They're a great choice for bracket cars, monster trucks, and virtually any off-road competition vehicle where a transbrake is either illegal or undesirable.
( 59 )
$262.95
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$499.95
Summit Bucks
Sonnax universal remanufactured valve bodies have been uniquely designed to fit a variety of '99-later Chrysler applications, regardless of OE checkball or solenoid configuration. The convenience of stocking one SKU number for various applications saves time, money and interchangeability confusion. The channel casting has been resurfaced to SAE recommended flatness and surface finish. The seasoned casting warpage is now eliminated, removing cross-leaks and manufacturing burrs that resulted in clutch distress and shift complaints. A new separator plate is also installed, along with gaskets, to seal the critical surfaces between the valve body and channel casting. Heavy-duty/high performance accumulator pistons with dual-guide seals are installed to prevent piston-to-bore scuffing and restore clutch pressures due to leakage. Patented Sonnax valves are installed to restore hydraulic pressures and eliminate shift complaints, trouble codes, converter concerns and overdrive clutch distress. Their patented accumulator cover plate—made from stronger, thicker material and secured with additional screws—is also installed to prevent flexing or breakage. To guarantee the highest level of operational performance, these remanufactured valve bodies are tested on state-of-the art equipment to verify that pressures match OE specification. Product notes: * One SKU fits all applications, saving time, money and confusion * Resurfaced OE channel casting eliminates warpage, burrs, and cross-leaks cost effectively * New separator plate and gaskets provide critical seal between cast surfaces * Patented Sonnax valves and pistons restore hydraulic integrity of circuits to eliminate shift complaints and clutch distress * Patented Sonnax accumulator cover plate stronger than OE to prevent flexing and breaking
( 2 )
$421.93
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$438.31
FTI Performance manual valve bodies are used for applications where you don't need a trans-brake to launch. Tractor pulling and monster trucks also often use full manual valve bodies for better control over their automatic transmissions. They deliver quicker shifting and higher line pressures. That means you get less clutch slippage under high load—so more power gets to the ground. Order the model recommended for your transmission and shift pattern application.
Not Yet Reviewed
$369.00
If you're into aggressive street driving and occasional track driving, McLeod Street Extreme clutch kits hold up to 700 lbs.-ft. of torque with street tires and moderate engine mods. These SFI-approved packages are the perfect upgrade for high-horsepower Mustangs (and other cars) that need reliable shifting on the street and the track. They feature a dual-faced ceramic friction disc, high clamp load pressure plate, pilot tool, throwout bearing, and pressure plate bolts (where applicable). You can run your pony with complete peace of mind. Street-friendly and track-proven, a McLeod Street Extreme clutch kit is your best decision. Order the model recommended for your application.
( 48 )
$365.00
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$525.00
Replacing older OE converters can be a challenge, often compelling customers to settle for makeshift solutions. You can remedy such an issue by choosing a LuK Clutch TorCon torque converter to restore smooth shifting to your automatic transmission. LuK's selection of converters provide the correct fit and function, covering a wide range of vehicles, assuring you will be able to find the proper unit for your vehicle.
( 2 )
$491.99
Bowler Performance All-in-One transmission wiring harnesses for the Tremec T-56 Magnum transmission comes equipped with all the connections pre-wired into one harness for a simple installation and ease of use. The small epoxy sealed controller is mounted to the VSS output using the existing bolt, and once the unit is powered up, you will be able to connect via Bluetooth to your Apple or Android smartphone using Bowler's free app. The app will give you the ability to customize the input and output settings for each feature to ensure proper operation in your vehicle. The perfect finishing touch for any Tremec T-56 Magnum conversion, Bowler's All-in-One harnesses eliminate the need for any additional equipment to operate the reverse lock out or generate the correct speedometer signals coming from your Tremec T-56 Magnum. Previously, you would have needed up to five separate parts to perform all the same functions wrapped one of these harnesses. The more technology we incorporate into our hot rods sometimes requires specific input signals to allow everything to function correctly. With the two speed outputs available in these harnesses, you can independently control the output of each one further eliminating any need for additional equipment and connections. Regarding the reverse lockout, Bowler has incorporated the same speed setting feature as the OEs into the All-in-One harnesses, giving you better control over when the lock out is triggered. Bowler's All-in-One harnesses give you much greater flexibility in the components you are able to use and require less time wiring everything up, providing an easier solution for setting up your Tremec T-56 Magnum transmission. Choose the harness version designed for your specific transmission make. Additional notes: * Harnesses utilize a small, built in, epoxy sealed box that will control each of the three functions with power and grounding for each function through a switched +12 V circuit and a wire connected to the negative battery post or engine block. * Control of the reverse lockout solenoid is based on a user defined speed setting (default is set at locked above 4 mph and unlocked at 0 to 3 mph), eliminating the need for a separate lock-out control box. * For your electronic speedometer, the harness is equipped with two speed sensor outputs; the speed sensor outputs generate a square wave signal that goes from about -5 to roughly +5 V, varying in frequency as the speed changes. * Output will automatically shift and give you 0 to +10 volts for EMC input needing positive only signal. * The two speed sensor outputs are completely independent and can be calibrated separately with any pulse count and ratio you want, and are able to drive any common speedometer, cruise control, or ECM. * Tremec T-56 Magnum reverse lock-out module VSS with dual output, pre-set as GM 40-pulse output on one and 16-pulse output on the other and can be adjusted with your iOS or Android device. * Includes wiring for reverse lights, reverse lock-out, and vehicle speed sensor.
( 4 )
$324.99
Summit Bucks
If you're looking for an easy upgrade to your automatic transmission, Sonnax Servo piston kits may be the answer. The improvement in shift quality is an immediate and noticeable value. These direct replacement kits will help to eliminate a bit of a "sloppy" gear performance caused by faulty OEM servo units. With all necessary rings and seals to prevent leakage and handle higher pressure, Sonnax servo pistons can be your link to greater band apply force. Choose the kit that matches your vehicle specs, then expect faster and firmer shifts!
( 30 )
$352.46
The Wheel precision-machined flexplates from J.W. Performance feature double-welded, high-quality ring gear and the highest quality steel centers. They are designed to take the punishment of today's high-horsepower revving motors from street to ProMod applications. All of J.W.'s flexplates are SFI-certified and have a replaceable ring gear. They're available in a heavyweight style for quicker launches and more rpm during the shift, or in a lightweight style for faster turbo spool time and improved engine response in street, Circle Track, and road race applications.
( 32 )
$395.12
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$424.97
Summit Racing™ offers clutch kits to fit thousands of vehicle applications. These stock-style replacements are engineered to OE design and performance standards. They will work in tandem with your transmission to deliver smooth gear shifts and an enjoyable ride. Besides the quality product, Summit Racing™ clutch kits present a fantastic value. Order the model recommended for your car, truck, Jeep, or SUV.
( 94 )
$286.99
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$452.99
B&M Transkits give you the same high-quality components that are used in all B&M Street and Strip transmissions. They include high performance friction materials, a complete overhaul gasket set, a drain plug kit, and all of the parts necessary to convert your valve body into a full manual/automatic valve body. These improvements enhance shift feel, while retaining full automatic features. The Transkits come complete with full instructions on how to assemble your transmission to B&M specifications (except BMM-70232 and BMM-70233). They also include special directions on how to modify your case, pump, and components.
( 44 )
$449.95
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$499.95
Haltech Nexus Ti4L transmission interface kits allow easy control of GM's popular 4L series of automatic transmissions. Designed as an add-on transmission controller expansion module for the NEXUS ECU and VCU range, the Ti4L will be programmed via the HalTech NSP software, or Rebel LS users will be able to follow the simple setup wizard in the Haltech Connect app. Easy set-up is not the only feature! They have also developed smart long-term learning strategies via closed-loop line pressure control, which means shifting gets better the more you drive. Features include: * Plug-and-play with Nexus Rebel LS terminated harnesses * Easy setup wizard for Rebel LS ECU * Programming and setup via NSP Software or Haltech Connect app * Long-term learning strategies via closed-loop line pressure control * Haltech 500 psi pressure sensor included Compatibilty: * Haltech Nexus Series ECUs and VCUs, including Rebel LS * GM 4L60E * GM 4L65E * GM 4L70E (non-4x4 2006-08 only) * GM 4L80E * GM 4L85E nNon 4x4 1994 and newer only) Note: Does not support Haltech Elite/Platinum/Legacy ECUs
Not Yet Reviewed
$457.99
TCI automatic transmission controller components are designed to keep your TCI EZ-TCU transmission controller in perfect working order. The controller allows for maximum electronic control over shift points, shift firmness, and shift speed and is fully configured and ready to run right out of the box with no tuning necessary. The unit is also optionally fully programmable based on load, speed and RPM. If you ever have the want or need to get any additional components or replacement components for your transmission controller TCI has the automatic transmission controller components you need.
( 11 )
$254.95
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$422.95
Hybrid Racing K-Swap clutch release system upgrades help to eliminate grinds during hard shifts and improve the feel of gear changes. Factory clutch master cylinders in newer cars are known to be rather unreliable, and because of their poor design and quality, they can lead to premature failures of critical parts throughout the drivetrain. High rpm grinds are mostly attributed to the OE master cylinder's inability to transfer fluid effectively to the slave cylinder, thus causing grinding and rasping of the gears and synchro since the clutch disc hasn't fully disengaged. Upgrading the clutch master cylinder and clutch line to Hybrid Racing K-Swap clutch release systems changes the system to an older, more direct, and efficient system. This improvement allows the driver to feel a more consistent and direct clutch pedal which also improves shifting at high rpms. These kits are intended to replace all of the clutch release components which will give you the most direct and reliable clutch pedal feel. Features and kit contents: * Genuine Honda® parts--not reproductions * OEM Nissin EM1 clutch master cylinder * Stainless steel braided clutch line * Banjo fittings with washers * OEM NISSIN slave cylinder (non-dampened)
Not Yet Reviewed
$266.94
Summit Bucks
Sonnax heavy-duty remanufactured valve bodies are built to overcome chronic shift and converter clutch apply complaints. It provides firmer shifts and a moderately increased pressure curve to improve performance, especially in truck and towing applications. Numerous Sonnax valve upgrades are included to restore hydraulic clearances that lead to shift complaints, clutch distress, converter complaints and codes, solenoid issues and pressure problems. Line pressure rise has been moderately increased to overcome shift complaints, delayed engagements, and to increase holding power to the clutches. To guarantee the highest level of operational performance, this remanufactured valve body is tested on state-of-the art equipment to verify that solenoid feed, clutch, converter, and line pressures match or exceed OE specifications. Choose your preferred kit packaged for your transmission. The valve body includes the following: * Oversized TCC regulator valve and sleeve, and limit valve spring for firmer TCC application * O-ringed bore plugs and abuse plugs * New accumulator control valve and sleeve with spring * Oversized AFL line up * New forward accumulator piston and seal * New pressure switch manifold * New EPC solenoid * New TCC PWM solenoid Kit contents: * Remanufactured valve body * Separator plate * Upper case gasket plate * Lower valve body gasket plate * 1-2, 3-4 accumulator springs * EPC solenoid harness adapter for 2003 to later units * Sonnax line pressure booster kit
( 3 )
$372.32
TCI Pro Super transmission overhaul kits contain the same parts and pieces used in building TCI Streetfighters. You will receive components normally replaced on a transmission rebuild, along with new performance frictions and steels, plus a Trans-Scat valve body kit, which enables you to change the valve body to a manual/automatic setup that delivers both a good solid shift suitable for towing applications and a competition-quality shift for drag racing. Features: * Seals, gaskets, and bushings * High performance frictions and steels * Reusable-type pan gasket * Adjustable modulator * High-volume filter * Drain plug kit * Trans-Scat valve body kit * Performance band included in 700R4, 4L60E, and 2004R kits as they normally require a band during regular repair cycles
( 87 )
$304.95
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$481.95
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