Give your 5.5L bi-turbo V8 the thunderous AMG growl it’s missing with the Valvetronic Designs Stainless Exhaust, offering total valve control for an aggressive track tone or refined cabin comfort.
Increase of +166 Horsepower, and +246 Torque! Eliminate top speed limiter, Increased throttle response. W.1 Tunes are designed for completely stock vehicles with no other modifications!
This software is only compatible with Windows PC / Laptop.
Increase of +211 Horsepower, and +321 Torque! Eliminate top speed limiter, Increased throttle response. W.2 Tunes are designed for vehicles with performance exhausts & high-flow air filters!
This software is only compatible with Windows PC / Laptop.
Refresh your cooling system! Includes a new expansion tank, pressure cap, and 1-liter of blue coolant.
10X Entries For Our 25th Anniversary Sweepstakes! For Radiator
Whether you're maintaining or repairing your stock engine or looking for added horsepower, we have one of the most comprehensive inventories of engine parts and accessories for German cars. From hard engine parts like connecting rods, pistons, cylinder heads, short blocks, and engine timing parts to performance engine software upgrades; we have you covered.
Lifetime Replacement
