Engine
Cooling
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
Intake
The Weistec ASV/WM Injection System adds multiple beneficial components to the M157 BiTurbo 5.5L engine. First being the addition of a Weistec Anti Surge ...
$3,299.00
Software
RENNtech M157 Biturbo ECU Upgrades are TÜV approved!
Our proprietary ECU upgrade for the Mercedes M157 engine offers huge gains in performance...
$3,495.00
RENNtech M157 Biturbo ECU Upgrades are TÜV approved!
Our intermediate level ECU upgrade for the Mercedes M157 engine still offers huge gains i...
$2,850.00
Stage 1
The R1 performance package for the CLS 63 features our proprietary ECU tune for the new biturbo M157 Mercedes engine which offers the largest gains on the marke...
$6,850.00
Turbocharger
Mercedes made the latest generation of 63 biturbo engines seriously fast right out of the box.Challenge accepted…….
We took the latest generati...
$20,640.00
Mercedes made the latest generation of 63 biturbo engines seriously fast right out of the box.Challenge accepted…….
We took the latest generati...
$15,980.00
Weistec Engineering is pleased to release the M157 W.3 Turbo Upgrade. We have developed proprietary aerodynamics designed to optimize extreme pressure operation...
$4,999.00
+459hp +369tq
M157 W.4 Turbochargers
Taking a giant leap ahead of all other available upgrades, the M157 W.4 Turbochargers completely replace the factory ...
$12,999.00