Popular Products
Braking
Our brake upgrade kit includes:
14.2” two piece rear rotors
4 piston rear brake calipers
Rear stainless steel brake lines
Rear high performanc...
$4,995.00
Need new rings for your Girodisc 2pc rotors? We got them. Rings come complete with all new hardware and full instructions for re-assembly; but if you choose you...
$700.00
Need new rings for your Girodisc 2pc rotors? We got them. Rings come complete with all new hardware and full instructions for re-assembly; but if you choose you...
$800.00
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...
$1,200.00
Includes $200 in KMD Tuning Gift Card
StopTech Big Brake Kits improve aesthetics and exceed stock brake performance in three areas. First, larger rotors incr...
$2,350.00
$2,115.00
Our front brake air ducts were designed in conjunction with our front splitter to dramatically increase cooling air flow to the front brakes reducing brake fade...
$1,690.00
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
While slippage in the torque converter is important under acceleration, this slippage becomes a liability once cruising speed is achieved. The lock-up clutch co...
$1,395.00
Weistec Engineering is proud to present the first and only upgraded torque converter for the AMG 722.9 transmission used in many AMG models (See Compatibility L...
$2,999.99
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
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...
$3,380.00
Engine
Weistec Engineering is proud to introduce the trunk mounted water tank upgrade for all M156 Supercharged, and M113 Supercharged vehicles. The use of this water ...
$999.99
Our forged pistons and billet 4340 rods add a great degree of strength and resilience to the M156 engine. The pistons benefit from an improved wrist pin design ...
$5,499.99
Weistec Engineering will now be offering the same CNC machined aluminum belt idlers that are used with our supercharger systems. The factory Mercedes parts are ...
$549.99
For those who will be making over 630bhp these uniquely designed spark plugs are a must have. The extended electrode tip of the OEM spark plug will be prone to ...
$149.99
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...
$999.99
Upgrade your Stage 1 or Stage 2 Weistec Supercharger system to our Stage 3 system with ease. Upgrading is made easy with all the parts needed to convert you to ...
$6,599.99
Exhaust
RENNTECH stainless steel and ceramic-coated exhaust headers offer true bolt-on installation, mounting directly to the OE down pipes - and all RENNTECH headers a...
$3,580.00
The biggest restriction to making high power with the M156 engine is the limited flow of the factory exhaust manifolds. Whether you want to make as much power a...
$4,495.00
A common upgrade to our Long Tube Header Systems is a High Flow Catalytic Converter. While maintaining the flow characteristics of the Long Tube Header, custome...
$1,195.00
Our performance and sound pipes bypass the stock Mercedes resonators for more volume and a better sound.
Combined with RENNTECH's ECU software and stainl...
$2,440.00
Our performance and sound pipes bypass the stock Mercedes resonators for more volume and a better sound.
Combined with RENNTECH's ECU software and stainl...
$2,440.00
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
Our full carbon fiber front lip spoiler offers aggressive front end styling and increased down force for improved handling.
Integrated into the flat panel un...
$2,980.00
Our rear diffuser is the companion component to the front splitter and functions to decrease drag and increase down force by improving the underbody airflow and...
$3,250.00
Suspension
Includes $150 in KMD Tuning Gift Card
This system intended for the experienced driver who does not only wish to determine the individual lowering of his vehi...
$1,699.99
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...
$1,351.49
Includes $50 in KMD Tuning Gift Card
Need to get low? ST coilovers feature a continuous thread construction for height adjustment from moderate to eXtreme!
...
$1,049.99
$892.49
Weistec rear lower control arms give you a very simple and refined way to further improve the handling and response of your CLK63 Black Series. These arms provi...
$2,799.99
Just because the CLK63 Black Series was built for the track does not mean there is no room for improvement. Weistec Engineering is proud to offer a Delrin Rear ...
$799.99