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2012 GMC SIERRA-1500 Parts and Accessories

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Results 1 - 24 of 91

FAST LSXR Intake Manifolds

The engineers at FAST teamed up with the airflow specialists at RHS to develop a 3-piece, polymer intake manifold. They are constructed from a proprietary advanced polymer material that offers a host of benefits over aluminum aftermarket intakes, including lighter weight and improved strength and heat dissipating characteristics. While they feature a 102mm air inlet that is perfectly suited to the FAST Big Mouth 102mm throttle body, they can also be used with stock or aftermarket 90mm or 92mm throttle bodies. Other features include integrated nitrous bungs and perfect bolt-on fitment that allows for the use of factory accessories without modifications or clearance concerns. FAST LSXR intake manifolds' 3-piece modular design allows for easy disassembly and porting. This new design gives you the ability to remove individual runners from the manifold for modification.

4.04 out of 5 stars ( 26 )

$1,210.95

FAST LSX Intake Manifolds

These FAST LSX intake manifolds are the only 3-piece Gen III composite manifolds proven to deliver increased performance without compromising bottom-end drivability or high-rpm horsepower. They easily bolt onto GM Gen III (LS1, LS2, and LS6) engines and are designed to work with the 92mm FAST Big Mouth throttle body. The new stylish black intake manifolds deliver terrific performance right out of the box and can be ported by the customer for even more flow. As requested by previous LSX customers, the FAST LSX intake manifolds feature the added benefits of corrosion-free stainless steel assembly bolts, an improved throttle body sealing flange, and O-ring gasket and threaded insert throttle body mounts that provide increased durability.

4.2 out of 5 stars ( 5 )

$1,222.95

FAST LSXRT Intake Manifolds

FAST LSXRT intake manifolds are designed specifically for GM truck engines (4.8L, 5.3L, and 6.0L) and LS1, LS2, and LS6 race applications where hood clearance is not a concern. FAST LSXRT 102mm intake manifolds follow the path chartered by the original FAST LSX Gen III intakes by featuring a modular design that allows for easy porting and disassembly and a runner design that yields an incredible 25 peak horsepower gain over the stock intake (on a stock 6.0L engine with a Big Mouth 102mm throttle body). Similar to the LSXR 102mm intake manifold for cars, the LSXRT features the ability to remove individual runners for modification. LSXRT's are constructed from a proprietary precision injection molded polymer which offers many benefits, including lighter weight, greater strength and lower heat soak propensity. While they feature a 102mm air inlet that was designed for the FAST Big Mouth 102mm throttle body, they can also be used with stock 90mm or aftermarket 92mm throttle bodies (78mm three-bolt throttle bodies require an adapter). Other features include integrated nitrous bungs and precise bolt-on fit that permits the use of factory accessories and OEM fuel/emission connections without adjustments or clearance issues. Some GM truck models may require the FAST 92mm or 102mm throttle body.

4.0 out of 5 stars ( 10 )

$1,269.95

TCI EZ-TCU Automatic Transmission Controllers

TCI EZ-TCU automatic transmission controllers are fully configured right out of the box--no tuning is necessary. Simply install them with the included instructions and then start the systems by answering the simple setup wizard questions on the included hand-held unit. They're capable of real-time switchable calibrations, which allows for multiple setups. The multi-shift settings include a full manual mode for using bump or paddle shifters. The TCI EZ-TCU automatic transmission controllers allow for maximum electronic control over shift points, shift firmness, and shift speed. Self-diagnostics enable users of every skill level to fully utilize their capabilities. Be sure to match your particular transmission with the correct EZ-TCU controller, as some models are designed for pre-2009 applications ... and other models are for 2009 and later.

3.86 out of 5 stars ( 37 )

$1,025.95

On Sale

Flowmaster American Thunder Exhaust Systems

Flowmaster American Thunder exhaust systems are designed with the latest exhaust technology available--resulting in improved acceleration, passing power, and fuel mileage. A key to these performance upgrades is Flowmaster's use of mandrel-bent tubing, which allows superior exhaust gas flow. The systems also feature mufflers (single or dual) that deliver plenty of the rich Flowmaster sound you expect. Components are built from stainless steel or aluminized steel; and some models include tips. American Thunder exhausts are available in more than a hundred configurations for fitment on specific truck and car applications.

4.36 out of 5 stars ( 543 )

$1,149.95

On Sale

AMP Research PowerSteps

AMP Research PowerSteps are full length automatic electric-powered running boards that instantly extend when you open your door, and then hide themselves safely out of sight when the doors close for improved ground clearance, aerodynamics, and appearance. And their attractive design and legendary reliable, all-weather performance sets a new industry standard. Features include: * High-strength, diecast aluminum-alloy linkage arms, anodized and PTFE coated to resist corrosion * Precision, zero-maintenance stainless-steel pivot pins * Extruded aluminum steps with a textured powdercoated finish for maximum grip and durability * Weatherproof, OEM-quality electric motors and wiring harness with sealed weathertight connectors * AMP-designed electronic controller employs pressure-sensitive, pinch-proof safety technology * Integrated LED light system (standard) * 600 lbs. load capacity (each side)

4.59 out of 5 stars ( 82 )

$1,599.99


$1,399.99

QA1 Pro Coilover Systems

QA1 Pro coilover systems are engineered from the ground up to offer unmatched performance over stock suspension setups. Pro coilover systems utilize adjustable and non-adjustable coilover shocks and springs designed specifically for replacing the factory shocks and springs. This combination offers ride height adjustment and variable position valving adjustment (where applicable) for performance not found in other kits. Choose QA1 Pro coilover systems for your next suspension upgrade.

4.84 out of 5 stars ( 341 )

$1,015.95

$1,219.95

On Sale

Flowmaster Outlaw Series Exhaust Systems

Flowmaster Outlaw Series exhaust systems are mandrel-bent for maximum performance and include specially designed mufflers. They deliver bold, dynamic interior and exterior tones for enthusiasts who covet the most aggressive components available. These systems include hardware and tips, where applicable--so installation is quick and easy. The kits are available in dozens of configurations for fitment on specific vehicles, including standard, crew, extended, and extended crew truck cabs; and long or short bed lengths. Order the Flowmaster Outlaw model designed for your application.

4.57 out of 5 stars ( 272 )

$1,299.95

Kooks Headers Race Long Tube Headers

Kooks Headers race long tube headers will deliver high performance to your racer. Their full-length race headers are built from T-304 stainless steel and are available in several primary tube and collector diameters to match your application needs. Optimize scavenging and increase power with top-quality Kooks race long tube headers.

4.84 out of 5 stars ( 63 )

$1,166.78

$1,350.35

Manufacturer Rebate

Aeromotive Phantom Direct-Fit Fuel Pumps

Aeromotive Phantom direct-fit fuel pumps are drop-in systems engineered for your late model truck. They're available in five pump sizes, from single 340 lph to triple 450 lph. Designed to work with plastic fuel tanks, Phantom Series pumps cover a range of GM truck models spanning decades. The 1999-2004 models used a smaller factory fuel sending unit than the later 2005-17 models. The smaller size unit limits the pump configurations that this tank will accommodate. Aeromotive Phantom direct-fit fuel pump systems are also compatible with different tank depths.

5.0 out of 5 stars ( 2 )

$1,003.70

$1,191.37

Belltech Coilover Kits

Belltech coilover kits are designed to replace the factory shocks and coil springs. They include performance shocks with stainless steel construction, coilover springs, a dust boot, and a threaded shock body. Belltech coilover kits offer up to 3 in. of lowering adjustment and increase performance handling.

5.0 out of 5 stars ( 1 )

$1,225.00

On Sale

Flowmaster Stainless Steel Force II Exhaust Systems

These stainless steel Force II exhaust systems have been designed with the latest exhaust technology available. Through this technology, you will experience improvements in acceleration, passing power, and fuel mileage. The key to these performance improvements is the use of mandrel-bent tubing. The tubing allows for superior exhaust gas flow, while stainless steel construction has been utilized for its corrosion-resistant qualities.

4.41 out of 5 stars ( 74 )

$1,049.95

$1,149.95

Rough Country Vertex 2.5 Adjustable Coilovers

Rough Country Vertex 2.5 adjustable coilovers allow you to dial-in the exact performance you need, whether it's a smooth ride for city streets or the ultimate damping for off-road mayhem, these high-performance reservoir shocks offer an elite ride-quality in every situation you face. Choose a set for your vehicle. Vertex coilovers with remote reservoir: * 8-stage adjustable damping * Monotube design * Nitrogen-charged * Steel braided reservoir line * Massive 2.5 in. piston * 22mm chrome-hardened piston rod * Specifically tuned for each application * 3-Stage Seal System * Heat-treated alloy bearing * Honed steel body * CNC-machined billet aluminum accents * Zinc plate finish with double clearcoat * 400 hour salt spray rating * 3-year Manufacturer's Warranty

Not Yet Reviewed

$1,299.95

DeatschWerks DW400 In-Tank Electric Fuel Pump Modules

DeatschWerks have taken their DW400 electric fuel pump and turned it into an in-tank drop-in module. These modules feature a fuel pump that flows 415 lph and uses an impeller made of a lightweight composite that's impervious to fuels like E85 and race fuel. DeatschWerks DW400 in-tank electric fuel pump modules are available for a variety of applications.

4.0 out of 5 stars ( 8 )

$1,179.00

PowerStop Z36 Truck and Tow Brake Upgrade Kits with Calipers

PowerStop is on a mission to deliver an easy and affordable way for any driver to upgrade their brakes--no matter where or how they use their vehicle. PowerStop Z36 Truck and Tow brake upgrade kits with calipers are recommended for trucks, 4x4s, and SUVs that not only work hard, but play hard as well. These brake pad, rotor, and caliper kits come with everything you need, including premium stainless steel hardware, for an easy, bolt-on installation. PowerStop's Z36 Extreme low-dust ceramic brake pads are reinforced with carbon fiber to provide severe-duty stopping power without sacrificing everyday drivability. They are paired with drilled, slotted, and zinc plated rotors that keep brake temperatures down by maximizing heat dissipation, critical for those long mountain descents. The bright red powdercoated calipers are not only protected against corrosion, but also stand out behind your wheels. Whether towing a boat or trailer, hauling for the jobsite, or tackling a tough off-road trail, choose easy and affordable, bolt-on performance upgrades—PowerStop Z36 Truck and Tow caliper brake kits.

4.64 out of 5 stars ( 551 )

$1,238.98

Motive Gear Ring and Pinion Gear and Installation Kit Combos

Want to get back the power and gas mileage that you lost from installing those big tires on your Jeep? Motive Gear makes it easy to re-gear your 4x4 with their ring and pinion gear and installation kit combos. These complete kit combos include front and rear ring and pinion sets, plus front and rear bearing kits, giving you everything you need to re-gear the front and rear differentials in one package. The kits come in a wide range of ratios for most Dana applications. Their quality is the result of years of development, outstanding design, and state-of-the-art manufacturing methods to ensure a perfect fit for an easy install.

4.75 out of 5 stars ( 8 )

$1,139.99

$1,242.99

Thule Xsporter Pro Truck Racks

Add utility above your pickup bed with the Xsporter Pro truck rack from Thule. This lightweight aluminum rack attaches to your bed rails without cutting or drilling, and has four one-key lock cylinders to lock the rack in place for security. Each of the two uprights adjusts in height from 6 in. to 33 in., and has a 71 in. wide aerodynamic crossbar with optional tool-free load stops to help secure cargo. Thule Xsporter Pro Truck Racks support up to 450 lbs. total and are backed by a manufacturer's limited lifetime warranty.

Not Yet Reviewed

$1,149.95

Dee Zee Platinum Series Truck Bed Toolboxes

Dee Zee's Platinum Series truck bed toolboxes are loaded with features to suit your storage needs. They include exclusive latches that offer trouble-free opening and closing, along with gas shocks that open at a steady, controlled rate to prevent damage to the truck's cab. A rubber bulb seal prevents water from entering the toolboxes. Dee Zee Platinum Series toolboxes are constructed from heavy-duty aluminum with a textured black powdercoat that will never rust. These boxes have lockable handles for security and a removable tool tray to keep your items organized. They're available for fitment in more than 1,600 truck applications from the 1970s and up.

Not Yet Reviewed

$1,175.99

Hays Twister Full Race Torque Converters

Hays Twister Full Race Torque Converters feature a custom-designed anti-balloon plate to stop any converter ballooning and swelling in racing situations. These torque converters are designed for use with a trans-brake and great for power adders such as nitrous, superchargers, and turbos. They're available with various RPM stall speed offerings to accommodate any mixture of modifications—including higher compression ratios, aftermarket camshafts, aftermarket cylinder heads, lower gear ratios, and vehicle weight loss. Additional product features: * All Full Race Series converters are built, tested, and proven to support up to 1,000 hp * Designed to handle the extreme shock and abuse of trans-brakes, nitrous oxide, superchargers, and turbochargers * State-of-the-art spray welding process is used in select areas. Spray welding provides clean, strong, and consistent fusion while also increasing strength through hardening from higher process temperature * Each converter is hand-built and inspected in every step of assembly to ensure top-of-the-line quality * All Hays torque converters are internally welded, compared to brazing. Testing has shown welding provides longer converter life while also enhancing consistency * Heavy-duty Torrington bearings are used for greater strength and durability * Stators are chosen with high-flow vents and channels to promote cooling in heat-producing higher horsepower applications * Increased horsepower and acceleration due to a weight-saving, one-application design. Almost all Hays converters are built for one application to reduce weight, compared to a multi-bolt pattern converter * Full Race Series torque converters are offered in several different stall speeds for popular automatic transmissions.

5.0 out of 5 stars ( 1 )

$1,249.95

$1,599.95

PowerStop Z23 Evolution Sport Brake Upgrade Kits with Calipers

PowerStop is on a mission to deliver an easy and affordable way for any driver to upgrade their brakes--no matter where or how they use their vehicle. Forget standard, off-the-shelf parts. PowerStop's Z23 Evolution Sport brake upgrade kits with calipers comes with everything you need--pads, rotors, calipers, and premium stainless steel hardware for an easy, bolt-on upgrade for your daily driver. Along with increased braking power, the carbon fiber ceramic brake pads feature a low-dust formula to keep those wheels looking great while you say goodbye to nasty brake dust. These pads combine with drilled, slotted, and zinc plated rotors to ensure a cool, smooth ride that protects against rust and corrosion, while the powdercoated calipers not only protect against corrosion, but also stand out behind your wheels. Give your daily driver the easy and affordable performance upgrade it deserves--PowerStop Z23 Evolution Sport caliper brake kits.

4.66 out of 5 stars ( 231 )

$1,157.23

RideTech RidePro 5 Gallon Analog Compressor Systems

RideTech RidePro Analog compressor systems use a 5-gallon compressor leveling system with 1/4 inch air valve, manual 4 way switches, and gauges. This 5-gallon tank and dual compressor design is recommended for vehicles 3500 pounds or more. This system includes a separate aluminum 5-gallon tank, RidePRO air valve block, 1/4 inch air lines, fittings, and wiring. Control your air ride equipped vehicle height with this affordable air suspension leveling system. RidePro analog compressor systems utilizes a high-quality solenoid air valve system, manual switches, analog gauges, and dependable electric components to provide simple and reliable air suspension leveling control.

Not Yet Reviewed

$1,620.00

Belltech Lowering Kits with Street Performance Shock Absorbers

Belltech lowering kits with Street Performance shock absorbers properly lower your sport truck or SUV--the first time. Not only that, they provide you with all the components you need to achieve the look you want, as well as the alignment, performance, and safety you need! All of these kits feature Belltech premium twin-tube Street Performance shocks that set the standards for performance handling. Each lowering kit is model-specific and assures proper fit and function today, tomorrow, and years down the road on your vehicle. Tune your rig with the performance of Belltech lowering kits and Street Performance shocks.

4.45 out of 5 stars ( 110 )

$1,060.00

$1,381.00

Borla S-Type Cat-Back Exhaust Systems

Borla S-type cat-back exhaust systems feature patented straight-through and multi-core technology to unleash hidden horsepower and produce a more aggressive sound and higher flow. Increased exhaust velocity adds power, driving excitement, fuel economy, and the distinctive Borla Sound of Power respected by motoring enthusiasts everywhere. Each system is built from premium 300-Series austenitic stainless steel, superior to T-400 Series knockoffs (such as 409), to give you the absolute best in performance and durability. Ultra-smooth mandrel bends ensure maximum flow and power, and precision computer-controlled CNC manufacturing ensures an accurate fit. It's just what you'd expect from the world's most experienced (and most winning) exhaust brand.

4.8 out of 5 stars ( 929 )

$1,318.99

Eaton Detroit Lockers

Eaton Detroit lockers are designed to maximize traction by delivering 100 percent of the torque and power to both drive wheels. They are engineered to keep both wheels in a constant drive mode and have the ability to automatically allow wheel speed differentiation when required.

4.96 out of 5 stars ( 80 )

$1,198.99

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