Popular Products
Braking
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...
$1,300.00
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
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
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...
$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 rods are designed as direct replacement for the OEM pistons and rods. The pistons use a wrist pin that is stronger and of a better...
$7,999.99
The M157 W.1 Package is provides an excellent starting point for extracting more power from the M157 Biturbo engine. The package consists of our M157 ECU Upgrad...
$2,499.99
The main bolts of the M157 engine are torque to yield bolts, making them one time use bolts. When assembling an M157 engine, new main bolts must be used to ensu...
$799.99
Exhaust
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
RADO manufactures the best downpipes that you can purchase for your car. Our downpipes are made using high quality stainless steel. We use stainless...
$2,649.00
RENNtech T-304 stainless steel (SS) sport mufflers are hand made and rigorously tested to remove any unwanted resonances in the cabin to deliver a deep sound th...
$2,680.00
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
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
This 100% pre-preg carbon fiber tailgate spoiler features an innovative RENNtech design that caps over the existing OEM tailgate spoiler. Most notable des...
$1,640.00
Our rear diffuser specifically designed for the E63 is the companion component and perfect addition to our carbon front splitter.
It visually enhances the re...
$3,380.00
Our full carbon fiber front splitter for the E 63 Biturbo is the end result of countless hours of in-house design, engineering and development work. The unique ...
$2,850.00
Suspension
The RENNtech adjustable suspension spring kit lowers your vehicle with the OEM dampers via adjustable spring perches and sport lowering springs on the front and...
$1,050.00
Includes $50 in KMD Tuning Gift Card
W/Airmatic Rear Suspension
The KW Suspension Coilover spring kit is used for lowering the vehicle in combination with...
$832.99
As an upgraded option we offer our adjustable spring kit in combination with our RENNtech digital suspension lowering module (DLM) in place of the rear adjustab...
$2,350.00
The RENNtech adjustable suspension spring kit lowers your vehicle with the OEM dampers via adjustable spring perches and sport lowering springs on the front and...
$1,050.00