SIMON 4 - The Ultimate BMW Software Tuning Programmer N52 The Active silicone charge pipes

The Active silicone charge pipes for the F80 M3

the difference in sound with this mid pipe will be noticeable the first time with an open throttle

double-walled 90 mm signature stainless steel tips to complete the look of the rear exhaust

If you have an Alpha N

Designed as a direct replacement for the restrictive factory downpipes

SIMON 4 - The Ultimate BMW Software Tuning Programmer N52 The Active silicone charge pipesSIMON 4 BMW TUNING PROGRAMMER ***THE SIMON 4 TUNING PROGRAMMER IS A TOOL USE TO READ AND WRITE TO YOUR ECU, IT IS ONLY SOLD WITH THE ACTUAL PERFORMANCE SOFTWARE. Before the SIMON 4, tuning your BMW required you to send your ECU to a BMW tuner like Active Autowerke to have the software modified uploaded by expert engineers. The ECU would then be re packaged and shipped back to you for re installation. In short, it was AT MINIMUM a 3 day fiasco. That