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.
The Ultimate While You're In There Kit For Your M157. As Seen On Legit Street Cars Youtube Channel - The Legit Fix Kit For your M157 Bi-Turbo AMG Engine.
10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
5504437
Mfg#:
LSCM157FIXKT
Ships in 3 Business Days
$4548.36
This product was last offered at the strikethrough price on 08-10-2026
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
