Mercedes Benz
C63 AMG
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
CL550
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
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...
$1,699.00
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...
$279.00
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...
$199.00
CL63 AMG
Looking to upgrade your Mercedes AMG CL63/E63/S63 11-16 V8-5.5L(t) air filters? aFe power's Pro 5R performance filters are constructed with 100% polyurethan...
$182.70
Looking to upgrade your Mercedes AMG CL63/E63/S63 11-16 V8-5.5L(t) air filters? aFe power's Pro DRY S performance filters are Constructed with 100% polyuret...
$189.09
Using the highest quality pre-preg carbon fiber, our 4-piece airbox kit for the 63 series biturbo M157 engine comes complete with flow optimized turbo tub...
$4,960.00
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
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...
$9,299.00
Weistec has exclusively partnered with ARP, the top name in performance engine hardware. Head studs are used to fasten the heads to the block in place of the fa...
$1,769.00
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...
$939.00
Stage 2
+211HP, +321TQ
As an industry leader in tuning and calibration, Weistec Engineering is proud to introduce the much anticipated ECU tune for the bi...
$2,099.00
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
Stage 1
+166HP, +246TQ
As an industry leader in tuning and calibration, Weistec Engineering is proud to introduce the much anticipated ECU tune for the bi...
$1,899.00
CLS550
Our full carbon fiber rear spoiler for the 218 CLS is the proverbial “cherry on top” and a stunning addition to the rear of the CLS exteri...
$1,480.00
CLS63 AMG
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
RENNtech's 3rd Generation Diverter Valve for the M157 5.5L V8 BiTurbo features an all-new Blow-Off Valve implemented into the re-designed OEM turbo tubes.
...
$980.00
Our performance down pipes replace the restrictive stock exhaust with high flow, 200 cell sport catalytics for improved performance, reduced back pressure, grea...
$4,880.00
Our rear diffuser specifically designed for the CLS 63 Biturbo is the companion component and perfect addition to our 3-piece carbon front splitter.
It visua...
$3,460.00
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
Our three-piece full carbon fiber front splitter for the CLS 63 Biturbo is the end result of countless hours of in-house design, engineering and development wor...
$2,990.00
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
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...
$3,480.00
The KW Suspension Coilover spring kit is used for lowering the vehicle in combination with the original dampers, even when electronic damper control is installe...
$1,354.00
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
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
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
E63 AMG
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
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...
$1,450.00
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
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