Popular Products
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
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
540 HORSEPOWER, 715 FT-LBS TORQUE!
As an industry leader in tuning and calibration, Weistec Engineering is proud to introduce the much anticipated ECU tune f...
$1,499.99
Our proprietary ECU upgrade for the Mercedes M278 Biturbo engine offers huge gains in performance across the entire RPM range without sacrificing around town co...
$2,740.00
Our intermediate level ECU upgrade for the Mercedes M278 engine still offers huge gains in performance across the entire RPM range, but with a slightly reduced ...
$2,480.00
Exhaust
Weistec Engineering offers True Downpipes for M157 AMG and M278 powered vehicles. Replacing the small and restrictive factory downpipes delivers significant gai...
$4,799.99
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...
$2,480.00
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
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 $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 $100 in KMD Tuning Gift Card
This KW V1 is the ideal system for customers wishing to rely on the experience of KW’s engineers to set the dampe...
$1,580.99
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 ...
$2,507.49
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
Includes $100 in KMD Tuning Gift Card
This KW V1 is the ideal system for customers wishing to rely on the experience of KW’s engineers to set the dampe...
$1,580.99