Popular Products
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
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 ...
$3,649.99
Engine
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...
$245.00
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...
$7,999.99
+139 WHEEL HORSEPOWER, +186 WHEEL TORQUE!
As an industry leader in tuning and calibration, Weistec Engineering is proud to introduce the much anticipated ECU...
$1,999.99
Exhaust
Our performance down pipes replace the restrictive stock exhaust with high flow, 200 cell sport catalytics for improved performance, reduced back pressure, grea...
$4,940.00
Maintenance
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...
$174.99
Suspension
This is the second generation of the RENNtech G-Wagon performance shock system. As any G-Wagon owner knows, the vehicle is an incredible off-road machine, but s...
$4,880.00
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...
$7,099.00