Popular Products
Braking
Our brake upgrade kit includes:
14.2” two piece rear rotors
4 piston rear brake calipers
Rear stainless steel brake lines
Rear high performanc...
$4,995.00
Need new rings for your Girodisc 2pc rotors? We got them. Rings come complete with all new hardware and full instructions for re-assembly; but if you choose you...
$700.00
Need new rings for your Girodisc 2pc rotors? We got them. Rings come complete with all new hardware and full instructions for re-assembly; but if you choose you...
$800.00
The Girodisc system is a direct replacement for the OE disc. No modifications are necessary. The disc will bolt directly to the car and work with OE calipers pe...
$1,200.00
The Girodisc system is a direct replacement for the OE disc. No modifications are necessary. The disc will bolt directly to the car and work with OE calipers pe...
$1,200.00
The Girodisc system is a direct replacement for the OE disc. No modifications are necessary. The disc will bolt directly to the car and work with OE calipers pe...
$1,300.00
Drivetrain
The Weistec 722.9 Transmission Pan provides improvement to the performance of the 7 speed 722.9 transmission in a few ways. Primarily is the increased flu...
$599.99
While slippage in the torque converter is important under acceleration, this slippage becomes a liability once cruising speed is achieved. The lock-up clutch co...
$1,395.00
The Weistec Engineering 722.9 Bulletproof Build Package is a complete set of parts needed for building the 7 speed 722.9 transmission. The most important ...
$3,649.99
The Weistec Engineering 722.9 Bulletproof Build Package is a complete set of parts needed for building the 7 speed 722.9 transmission. The most important ...
$3,599.99
Simply explained, a differential is the last point between the engine and the wheels where power is transferred. The differential functions as a system to direc...
$4,480.00
Simply explained, a differential is the last point between the engine and the wheels where power is transferred. The differential functions as a system to direc...
$3,580.00
Engine
Weistec M157 / M278 spark plugs are designed and manufactured for not only high power applications but also factory replacement. The factory iridium plugs do no...
$274.99
Our latest second generation intercooler pump out performs any other unit on the market; flowing over twice as much coolant as the problematic OEM pump and sign...
$1,395.00
These Weistec filters are compatible with the 5.5 Biturbo and the 4.7 Biturbo (M157 and M278 engines). When analyzing the factory airbox and flow characteristic...
$245.00
Our forged pistons and billet 4340 rods add a great degree of strength and resilience to the M156 engine. The pistons benefit from an improved wrist pin design ...
$5,499.99
Weistec Engineering will now be offering the same CNC machined aluminum belt idlers that are used with our supercharger systems. The factory Mercedes parts are ...
$549.99
For those who will be making over 630bhp these uniquely designed spark plugs are a must have. The extended electrode tip of the OEM spark plug will be prone to ...
$149.99
Exhaust
All the sophistication of the 3.0L Turbo-equipped W205 C-Class, now with more rumble.
Fits the W205 AMG C43, C450 AMG, and C400
Max gains of 7 hp and 13...
$1,118.45
$1,062.53
Our performance down pipes replace the restrictive stock exhaust with high flow, 200 cell sport catalytics for improved performance, reduced back pressure, grea...
$4,940.00
Our performance down pipes replace the restrictive stock exhaust with high flow, 200 cell sport catalytics for improved performance, reduced back pressure, grea...
$4,780.00
RENNtech is proud to introduce the all-new Sound + Styling Package exclusively for the W205 - C63 AMG Sedan. With the release of the Sport Muffler and Decklid S...
$5,160.00
Weistec Engineering offers True Downpipes for M157 AMG and M278 powered vehicles. Replacing the small and restrictive factory downpipes delivers significant gai...
$3,499.99
RENNtech is proud to introduce the all-new Sound + Styling Package exclusively for the W205 - C63 AMG Sedan. With the release of the Sport Muffler and Decklid S...
$5,160.00
Exterior
Offering aggressive styling and functional performance; our fully adjustable DTM style rear wing is designed to be mounted to the OEM trunk lid and improves rea...
$3,350.00
Our full carbon fiber rear spoiler for the 218 CLS is the proverbial “cherry on top” and a stunning addition to the rear of the CLS exteri...
$1,480.00
RENNtech is proud to introduce an all new rear decklid spoiler design for the Mercedes-Benz E-class. This highly integrated pre-preg carbon fiber spoiler ...
$1,480.00
Our rear diffuser specifically designed for the CLS 63 Biturbo is the companion component and perfect addition to our 3-piece carbon front splitter.
It visua...
$3,460.00
Our three-piece full carbon fiber front splitter for the CLS 63 Biturbo is the end result of countless hours of in-house design, engineering and development wor...
$2,990.00
RENNtech is proud to introduce an all new rear decklid spoiler design for the Mercedes-Benz S-Class. This highly integrated prepreg carbon fiber spoiler c...
$1,680.00
Interior
RENNtech's Boost pressure gauge offers direct visual indication of your CLA's turbo performance and available boost pressure. Our easy to ready, 67mm ga...
$480.00
Suspension
The RENNtech V3 Digital Lowering Module (DLM) is designed to work with all available Mercedes Airmatic or ABC (Hydraulic) Suspensions.The unit allows the user t...
$1,395.00
Includes $200 in KMD Tuning Gift Card
The KW V3 coilovers offer a track worthy package for the street with its dual dampening technology. The ...
$2,422.49
Weistec Adjustable Suspension System for the W205 C63 and C63-S converts the front to adjustable coilovers and adds an adjustable perch for the rear. The system...
$1,749.99
This is the second generation of the RENNtech G-Wagon performance shock system. As any G-Wagon owner knows, the vehicle is an incredible off-road machine, but s...
$4,880.00
Includes $150 in KMD Tuning Gift Card
KW Street Comfort: Individual sport suspension with Maximum comfort
Height adjustable Street Comfort allows a loweri...
$1,827.49
Includes $150 in KMD Tuning Gift Card
KW Street Comfort: Individual sport suspension with Maximum comfort
Height adjustable Street Comfort allows a loweri...
$1,886.99