Popular Products
Braking
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...
$1,300.00
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...
$750.00
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
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...
$3,399.00
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
Engine
Our proprietary 82mm Performance Throttle body package offers a 22% increase of incoming air volume. This translates into a noticeable gain in both overall perf...
$3,945.00
By optimizing the path and increasing the volume of incoming airflow, our carbon air box is able to offer gains up to +10 hp and + 5 lb/ft of torque, in additio...
$2,460.00
RENNtech HHT (hand held tuner) allows you the unlimited ability to switch between tuned and stock ECU programming and requires no ECU removal!
Our proprietar...
$2,250.00
Maintenance
Constructed with 100% polyurethane on all four sides, this high flow "oil-free" OE replacement performance filter will outflow stock paper filter for ...
$182.70
Constructed with 100% polyurethane on all four sides, this high flow, oiled OE replacement performance filter will out flow stock paper filter for improved hors...
$182.70
The Weistec Engineering Billet Oil Filter Cap for the M156 and M159 engines is designed as a direct replacement for the plastic OEM cap. The Billet Oil Fi...
$179.00
Suspension
The KW V3 coilovers offer a track worthy package for the street with its dual dampening technology. The separate and independently adjustable reb...
$3,744.00
With the new Dynamic Damping Control, DDC, KW has designed a new coilover suspension, which uses the original 3-way button to adjust the damping. KW combines th...
$4,914.00