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
-6PSI Boost
-2.9L Whipple SC unit
-Large capacity intercooler system
-Perfectly matched ESS ECU software delivered through included E-Flash cable
+150WHP ...
$9,495.00
+32-34whp
Removed top speed governor
Catless option available
Header option available
...
$895.00
The RENNtech BOV | Blow-Off Valve Adapters are designed as a quick bolt-in solution which are intended to release excessive pressure in high boost occasions.
...
$360.00
These Weistec filters are designed specifically for the vehicles equipped with the M177 BiTurbo 4.0L engine. The filters, while having better flow than the fact...
$199.99
RENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980s! Our experience, countle...
$7,380.00
The Weistec M177 W.3 Turbo Upgrade unlocks the true potential of the 4.0L Biturbo engine. Power gains are substantial, especially in the top end...
$9,999.99
Exhaust
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 Downpipes for the W205 C63 and C63-S models. The downpipes are engineered and designed with the most sophisticated Computer Aid...
$2,799.99
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
RENNtech Downpipes are constructed from T304 High-Strength Stainless Steel and are equipped with 200 Cell Sport Catalytic Converters.
With the replacement of...
$4,480.00
RENNtech Sport Mufflers are made out of T-304 stainless steel (SS) and 100% hand crafted in the USA.
This exhaust system is rigorously tested to remove any u...
$3,880.00
Welcome to the AWE Tuning AMG C63 Exhaust Suite:
Max power gains of 19 hp and 26 ft-lbs of torque at the crank
Easy options for cars with and without th...
$2,385.95
$2,195.00
Exterior
RENNtech is proud to introduce an all new rear decklid spoiler design for the Mercedes-Benz C-Class Sedan. This highly integrated pre-preg carbon fiber spoiler ...
$1,680.00
Suspension
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
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 ...
$3,110.99