Popular Products
Drivetrain
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 ...
$4,399.00
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...
$699.00
What is the Flashtool and what does the Flashtool do?
The Cypher Flash Tool is an tool that allows for at home control module flashing via t...
$1,999.00
Engine
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
RENNtech has developed this power packed yet stylistically subtle package specifically for the S550 sedan. RENNtech achieved this with just a few modifications ...
$7,380.00
We are proud to announce our new high-performance Auxiliary Radiator upgrade for M157/M278/M133. Designed specifically for enthusiasts who demand superior cooli...
$379.99
Exhaust
Our performance down pipes replace the restrictive stock exhaust with high flow, 200 cell sport catalytics for improved performance, reduced back pressure, grea...
$4,280.00
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...
$3,480.00
Exterior
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
Suspension
RENNtech HSM | Hand-Held Suspension Module Software Download (ALL):
Download Software for Windows (32 and 64-bit) here
Download the Androi...
$1,495.00