Computer Powertrain Control Unit, Get rid of those torque limiters & Eliminate top speed limiter, offers better & more consistent performance and higher top speeds.
Precision manufactured and featuring a GeoSpec® corrosion-resistant coating
10X Entries Into Our F80 M3 Sweepstakes For cars with Copper Free Brake System AMG (Code OS8).
Brand:
ES#:
5425751
Mfg#:
0004212312-XKT
In Stock
ON SALE!
$345.99
This product was last offered at the strikethrough price on 06-13-2026
Features ride height adjustability with dampers compatible with OE electronic damping systems.
10X Entries Into Our F80 M3 Sweepstakes 2X Entries For Our Spin To Win Sweepstakes! For Vehicles Without Electronic or Air Suspension
Increase of +58 Horsepower, and +105 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.
Increase of +43 Horsepower, and +90 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.
Push your M256 past the factory limits with a next generation high pressure fuel pump upgrade that delivers 90 percent more flow and superior atomization to effortlessly support bigger turbos and heavy E85 blends.
Unlock massive power and faster turbo spool by replacing your restrictive factory downpipe and front sections while keeping your stock rear exhaust completely intact.
All the performance upgrade options from the best brands in the business to help build your dreams. Our performance parts catalog is the largest anywhere and constantly growing to keep your build on track.
Lifetime Replacement
