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2004 CADILLAC CTS Parts and Accessories

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HP Tuners VCM Suite MPVI4 Credit Pro Packages

HP Tuners Introduces VCM Suite MPVI4 Credit Pro packages, the latest evolution of their industry-leading OBDII interface. Built for professionals and enthusiasts alike, the computer programmers connect your vehicle to VCM Suite software (5.2+) for faster, smarter, and more powerful tuning and diagnostics than ever before. With upgraded hardware, expanded connectivity, and future-ready Wi-Fi capabilities, the MPVI4 redefines what's possible in performance calibration and data acquisition. Models are available with 0, 2, 4, 6, or 8 credits. HP Tuners VCM Suite MPVI4 Credit Pro packages feature: * Improved standalone logging: the most powerful device yet, capable of delivering standalone logging performance on par with VCM scanner and a wired connection * Upgraded hardware architecture: New internal processor for improved data throughput and flashing performance; 30x more memory than previous generation MPVI3 * High-speed USB-C connectivity: Faster, more reliable communication with your PC and vehicle * Bluetooth 5.2: Seamless wireless connection for scanning, logging, and TDN support * Wi-Fi ready (future update): Wireless VCM Suite connectivity coming soon * Enhanced storage and efficiency: Increased onboard memory for robust logging sessions * Improved OBDII fitment: A revised, tapered design means a more secure connection and better compatibility with even more makes/models * Built-In Pro feature set: Standard on every MPVI4, enabling standalone data logging and external sensor integration with PROLINK+ * RGB status LEDs: Clear visual indicators for power, connection, and activity status * Cross-Platform Compatibility: Works with VCM Suite (5.2+), TrackAddict, and RaceRender

4.0 out of 5 stars ( 4 )

$799.91

DeatschWerks Fuel Injectors

DeatschWerks fuels your passion for performance with fuel injectors specifically designed and engineered for your Sport Compact, Modern Muscle, and European vehicles. DeatschWerks fuel injectors are manufactured to fit your OE harness, fuel rail, and manifold. Because they are application-specific, you'll spend less time installing and tuning, so you can spend more time enjoying the increased performance of your ride! They provide an excellent spray pattern and atomization for optimized idle and tuning. Each set is flow-matched both statically and dynamically, and flow-balanced to within one to two percent. A flow report is included with each set of DeatschWerks fuel injectors.

4.68 out of 5 stars ( 69 )

$799.00

On Sale

RAM Concept 10.5 Dual-Disc Organic Clutch Kits

RAM Concept 10.5 dual-disc organic clutch kits usher in a new era of RAM clutch design. The Concept kits introduce modular dual-disc systems with effective performance improvements. Perfected design, better performance, and a competitive price ... what an idea! Designed for use on applications with horsepower rating of up to 750. RAM Concept 10.5 dual-disc organic clutch kits feature: * Higher clamp load 10.5 in. pressure plate offers smooth pedal effort and more surface area to dissipate heat * Poly-coil sprung hub top disc allows for dampening on engagement to eliminate harsh starts and transmission fatigue * Billet modular stands are precision-machined to eliminate distortion and provide a stable platform to house the clutch unit

3.86 out of 5 stars ( 7 )

$939.00


$845.10

Nitrous Express 3-Bolt Plate Nitrous Systems for GM LS Engine

Nitrous Express 3-bolt plate systems for GM LS-style engines feature a billet nitrous plate that installs between the throttle body and intake manifold, making installation quick, easy, and attractive on all LS car and truck intakes with a 3-bolt throttle body. Power levels can be adjusted between 50, 100, 150, 200, 250, 300 and 350 horsepower. Order the system preferred for your setup. Systems include: * Billet nitrous plate * Choice of 5 lb., 10 lb., 12 lb., or 15 lb. aluminum bottle * Stainless steel bottle brackets * ProPower Lightning Series solenoids * 6 AN feed line * Braided stainless steel solenoid to plate lines * Master arming switch * WOT switch * Every nut, bolt, and electrical connector needed to complete installation

3.83 out of 5 stars ( 6 )

$857.57

$945.66

Nitrous Express 4-Bolt Plate Nitrous Systems for GM LS Engine

Nitrous Express 4-bolt plate systems for GM LS-style engines feature a billet 90mm or 102mm nitrous plate that installs between the throttle body and intake manifold, making installation quick, easy, and attractive. Power levels can be adjusted between 50, 100, 150, 200, 250, 300, 350 and 400 horsepower. The systems are pre-machined with a second set of nitrous and fuel passages so you can easily upgrade to a dual stage system down the road. (Special note: These kits will work on 2010 and newer Camaros if you rotate the throttle body 180 degrees.) Order the model best suited for your setup. Systems include: * 90 or 102mm nitrous plate * Choice of no bottle, 5 lb., 10 lb., 12 lb., or 15 lb. bottle * Stainless bottle brackets (except no bottle system) * ProPower Lightning Series solenoids * 6 AN feed line * Braided stainless steel solenoid to plate lines * Master arming switch * WOT switch * Every nut, bolt, and electrical connector needed to complete installation

4.0 out of 5 stars ( 3 )

$857.57

$945.66

DeWitts Direct-Fit Radiators

DeWitts direct-fit radiators install in the stock mounting position and use the factory connections without any modifications or adapters. They're manufactured and furnace-brazed in DeWitts' own furnace. The cores contain two rows of cooling tubes, a serpentine fin, and are epoxy-free. These radiators feature press-formed end tanks and are manually TIG-welded by expert craftsmen, providing the ultimate in strength and appearance. They are available with a standard finish or an exclusive black ice epoxy coat for a great OEM look. DeWitts direct-fit radiators can also be ordered with a built-in transmission cooler for your automatic equipped vehicle.

5.0 out of 5 stars ( 5 )

$858.99

On Sale

MSD Multiple Spark Coils and Coil Kits

MSD Ignition's Multiple Spark Coils (MSC) will fit in place of the stock GM LS coils and connect directly to the factory connectors. Once installed, you'll have the power and performance of higher energy sparks, crowned with MSD's multiple spark discharge. Increased spark energy and voltage, along with multiple spark capabilities, help improve the combustion process of the fuel mixture to create an efficient burn. This results in improved throttle response, smooth idle and quick starts, plus increased high rpm performance!

4.0 out of 5 stars ( 26 )

$1,078.95


$751.13

On Sale

Holley Sniper EFI Fabricated Intakes

Holley Sniper EFI fabricated intake manifolds are budget-friendly and performance laden! These durable Holley hi-ram manifolds feature 3mm (1/8 in.) thick T-6061 sheet aluminum construction with 100 percent TIG welds. The EFI versions have 92mm or 102mm throttle body openings, as well as runners with tapered tops to increase velocity and evenly distribute airflow. They also include 3/8 in. fuel rail kits and, of course, are branded with the Holley Sniper EFI logo. Budget and performance go hand-in-hand when it comes from Holley in the form of their Sniper EFI fabricated intakes. Order the model and options recommended for your make/engine application.

3.71 out of 5 stars ( 17 )

$921.95


$828.95

Snow Performance Boost Cooler Stage-2.5 Water/Methanol Injection Systems

Snow Performance Boost Cooler Stage-2.5 water/methanol injection systems suppress detonation so that more power-producing timing can be utilized. Water, with its high latent heat of vaporization, cools the intake charge and combustion. Methanol cools the charge and combustion, but also acts like an extremely high-octane fuel (some researchers claim as high as 120 octane) and adds more oxygen to combustion. Complete with custom water-methanol injection throttle body spacer plate, braided stainless line, and 4AN fittings offering un-surpassed reliability and ease of install. They're designed for use in naturally aspirated carbureted gasoline vehicles.

4.75 out of 5 stars ( 8 )

$937.51

On Sale

NOS Sniper EFI Wet Nitrous Systems

NOS Sniper EFI wet nitrous kits are the perfect upgrades for budget-minded builders who want the easy bolt-on power that made nitrous famous. Sniper EFI kits feature the exclusive NOS soft-plume fogger nozzle that finely atomizes the fuel for superior nitrous and fuel distribution. Sniper kits include all necessary installation components and will provide up to 75 hp in 4- and 6-cylinder engines—and up to 150 hp in 8-cylinder engines. Order the universal or recommended kit to best fit your vehicle and engine application.

4.8 out of 5 stars ( 5 )

$870.95


$782.95

Melling Retrofit Hydraulic Roller Lifters

Melling retrofit hydraulic roller lifters are designed for street performance enthusiasts who want to upgrade to a hydraulic roller camshaft. They are manufactured to fit early or late model blocks, including blocks with tall lifter bosses.

Not Yet Reviewed

$835.99

Dorman Driveshafts

Dorman driveshafts are designed to replace your factory originals with no modifications. They are manufactured from quality materials and have the stock connections for an easy bolt-in fit. The driveshafts are available in various lengths, diameters, and materials for many auto, truck, and SUV applications.

4.5 out of 5 stars ( 324 )

$927.95

$928.99

NOS Holley Hi-Ram LS Nitrous Plates

NOS Holley Hi-Ram LS nitrous plates provide a clean and easy way to install a nitrous system in your Hi-Ram intake manifold. These billet aluminum plates sandwich between the upper and lower intake, making installation simple. To keep things durable NOS machines each plate from one piece of 6061-T6 aluminum—then machines the passages directly into the plate and finishes them with an anodized coating to prevent corrosion. Designed to be run as a dry nitrous system, the plates are capable of supporting over 1,000 hp. Give your Holley Hi-Ram intake an extra kick with a NOS Hi-Ram LS nitrous plate. Order the model and finish recommended for your engine family application.

Not Yet Reviewed

$819.95

PRW Platinum Series Shaft-Mount Rocker Arms

PRW Platinum Series shaft-mount rocker arm systems fulfill the needs of successful racers and performance engine builders at every level. The Performance Quotient PQx rocker arms are made from quality alloy extrusions. These systems include CNC-machined billet steel pedestals, and ground, steel alloy rocker shafts—along with PRW SCM-4135 alloy steel fasteners, studs, and bolts. PRW Platinum Series shaft-mount rocker complete kits include all the components and hardware required for a professional installation. Order the system recommended for your specific vehicle and engine size. Features, items, and specs: * Several systems to suit many cam profiles * 8 pairs of shaft-mount rockers with adjustable cup-style valve lash adjusters * SAE 42100 full complement precision needle and cage roller bearings * Rated up to 750 lbs. open spring pressure * Internal oiling system for long-lasting performance

4.3 out of 5 stars ( 10 )

$816.92

Excess Injectors Fuel Injectors

With a goal of changing the marketplace, Excess Injectors intends to create the best tested, matched, and most accurate performance fuel injectors in the world and become the new standard for performance injectors. When you purchase a set of Excess injectors, you also gain access to the Exact Match Data app. This app allows you to unlock the full potential of your injectors by providing access to comprehensive testing and matching data, including data downloads for HP Tuners and more. With over 20 years of experience, they continue to help you build better, faster, more powerful and fuel efficient vehicles. Take your ride's performance to the next level with the Excess Injectors fuel injectors best suited for your application. Product features, items, and specifications include: * Tracking app features over 6,500 measured flow points on each injector * Measurement of flow slope done with 1,200 recorded flow samples * High flow slopes matched within one percent in every set * Dead times matched within two percent in every set * Cloud server access allows you to see how tightly matched your specific set is, flow profiles, and each injector's testing parameters for full disclosure

Not Yet Reviewed

$864.36

EBC Fully Floating 2-Piece Brake Rotors

EBC fully floating 2-piece brake rotors are where craftsmanship meets fine materials to provide high performance. Offering a new level of quality, these rotors are perfectly matched to the highest braking demands of modern performance road and race cars. EBC fully floating 2-piece brake rotors are available in multiple options to replace or upgrade your current rotors. Features and benefits include: * Outer rings are cast from the highest-grade G3500 disc alloy containing a high-carbon, high-copper metallurgy for superior thermal conductivity and heat cycling—for maximum brake rotor life and performance, particularly during harder driving or track driving. * Anodized hubs, stainless steel hardware, and the incorporation of anti-rattle clips, mean these rotors are road-friendly—making them the perfect choice for those who enjoy regular track days, yet also drive their cars on the public highway. * All cast iron rings feature 48 curved vanes and are handed left and right, ensuring the vanes always rotate in the correct direction, giving maximum cooling efficiency. * Mounting bells are precision-machined from a billet of aerospace-grade aluminum, ensuring they're both strong and lightweight. The parts are subsequently black anodized, providing an aesthetically pleasing and corrosion-resistant finish. This allows the bells to be re-used for multiple outer friction rings, thus leading to lower long-term running costs. * SD-Drive bobbins are machined from a single piece of stainless steel, meaning these bobbins can never rust; they'll look great for years and the brake rotor will continue to float freely. * Lightweight with lower rotational inertia leads to improvements in acceleration, "dive" under braking, and tire road holding.

Not Yet Reviewed

$834.48

Nitrous Outlet EFI Single Nozzle Systems

Nitrous Outlet EFI single nozzle systems come with more jets to set horsepower exactly where you want it. They include everything needed to add horsepower to your late model EFI vehicle--hardware, wiring, jetting, solenoids, hoses, and a nozzle. They also include a wide-open throttle (WOT) switch that only allows the systems to be activated when the motor is at full throttle. This feature will help in preventing engine damage and lean spikes. Get Nitrous Express race-proven systems because of their quality components and extreme performance.

Not Yet Reviewed

$836.99

Special Offer

Nitrous Outlet Nitrous Oxide Plate Systems

Nitrous Outlet nitrous oxide plate systems come out of the box ready to deliver superior atomization. They spray up to 200 hp, but are capable of flowing up to 400 hp with additional jetting and a -6 AN main feed line upgrade. You'll get race-proven performance from the unique 6-port discharge design, guaranteeing the perfect mixture of fuel to nitrous. Overview: * Max flow 400 hp * 400+ hp solenoids * Anodized black aluminum plate and bottle (if included) * Wide-open throttle activation switch * Hardware, electric, and jetting included * E85 compatible with different jetting * Jetting included for 50 to 200 hp

4.0 out of 5 stars ( 3 )

$853.99

MagnaFlow Universal Catalytic Converters

MagnaFlow universal catalytic converters by Car Sound form the basic building blocks for many applications. The main benefit of universal catalytic converters is that one unit may cover a wide variety of vehicle makes and models. Installing universal converters often requires the use of welding, cutting, and tube-bending equipment that is readily available to most professional installers. They are extremely well made, with features such as: * A ribbed body that minimizes expansion and distortion when the converter heats up. They form a channel that protects the cushioning mat from direct exposure to exhaust gasses, and hold the ceramic catalyst in proper alignment. * A 1/2 in. lap joint where the necks meet the body. The neck does not extend into the converter body, where it could hamper exhaust flow. * Manufactured with separate dies on different sized inlets. Putting larger neck sizes on smaller bodies would reduce the flow of the converter and the quality of the product. * A monolithic honeycomb catalyst. The ceramic is designed for maximum flow and surface area. The coating method is strictly controlled to maintain exact specifications. * Seam-welded close to the converter body for a strong, tight bond. Welding along the edge could allow the converter to expand like the folds in an accordion, allowing the catalyst to move around. * Heavier-gauge stainless steel, tip-to-tip. They do not use inferior mixed weights and materials. * An aluminized or stainless OEM-style ribbed heat shield that creates a rigid wall of protection against heat and adds to the structural stability of the converter.

4.63 out of 5 stars ( 187 )

$854.00

Walker CalCat Direct-Fit Catalytic Converters

Specifically formulated for Californians, Walker CalCat direct-fit catalytic converters comply with regulations for OBD-II and pre-ODB-II vehicles. These converters have an OE-style and fit for ease of installation. The CalCats feature a stainless steel body, a heat-shielded pipe, and a structural brace for enhanced strength and durability. Get the best balance of performance and price from Walker CalCat direct-fit catalytic converters, available for a wide range of vehicle applications.

4.17 out of 5 stars ( 23 )

$888.99

$980.99

Walker Direct-Fit Catalytic Converters

Walker direct-fit catalytic converters outflow stock converters, and also include these features: Aluminized steel heat shields (many have dual shields), 409 stainless steel shells, 16-gauge stainless steel pipes and nipples, and a heat-resistant sealed mat. The materials and construction contribute to a long life and better performance. Walker units are direct replacements for OE converters and will install with little or no modification. Some converters have steel air tubes with perforated holes to help distribute the airflow evenly, without robbing power. New flanges are included when necessary. Hundreds of models and configurations are available for fitment on specific vehicle applications.

4.0 out of 5 stars ( 33 )

$802.99

$923.99

EBC Stage 20 Ultimax2 Front and Rear Pads and RK Rotors

Give your vehicle's braking system a boost with EBC Stage 20 Ultimax2 brake pads and RK rotors! A balanced and maximum braking effect only happens when all brakes are working, and the often forgotten rear brakes account for up to 40 percent of your vehicle's stopping power, so renewing the front and rear at the same time makes perfect sense. High-efficiency Ultimax2 EBC pads are built with Aramid fiber and are chamfered with patented EBC brake-in coating for faster pad brake-in after their installation. The pads also feature a centerline slot to to prevent heat expansion and noise. The RK rotors are direct-fit OEM replacements with a thermic anti-rust surface coating, and they are fully balanced and runout tested for smooth braking performance. Stage 20 kits come with front and rear pads, rotors, and caliper lube.

4.28 out of 5 stars ( 18 )

$780.94

EBC Stage 4 Signature Disc Brake Kits

EBC Stage 4 Signature disc brake kits are sure to get your ride stopped better than ever. They include a pair of EBC USR Series Sport GEOMET-coated, slotted brake rotors and a set of EBC ceramic brake pads. The components are matched up together to help you get your ride stopped the right way!

4.51 out of 5 stars ( 39 )

$779.06

On Sale

Clearance

Baer Brakes EradiSpeed+ Brake Rotors

Baer Brakes EradiSpeed premium performance rotor upgrades deliver lighter weight, advanced cooling, and an enhanced appearance. The EradiSpeed line features slotted, cross-drilled, zinc coated and directionally vaned units that are purpose-cast with quality iron materials for performance far beyond the factory units they are replacing. Moreover, their curve-vaned design provides greater airflow and heat dissipation. Baer Brakes EradiSpeed+ brake rotors are stock size replacements in a 2-piece design with increased mass in the "firepath". They offer a direct bolt-on installation with no bleeding of the brakes. EradiSpeed+ rotors feature 6061 T-6 billet aluminum hats with a black anodized finish and NAS stainless steel hardware.

4.67 out of 5 stars ( 6 )

$899.95

$967.95


$808.95

$870.95