Maximum PSI Turbo Kits

Stage 1

The Maximum PSI Stage 1 catted turbo kit is the only street legal, factory DME tuned kit available for the E46 M3

Learn more

Stage 2

Stage 2 utilizes similar hardware as Stage 1 but incorporates hardware/software upgrades for even more power on MS109 fuel

Learn more

Stage 3

Stage 3 utilizes the factory DME with a Maximum PSI engine build using forged internals and a larger Precison turbo.

Learn more

Stage 4

Stage 4 upgrades numerous components from Stage 3.  S4 allows you to do a burnout from corner exit to corner entry.

Learn more

Follow Us on Instagram

 Don't miss out on Maximum PSI's first annual reverse Black Friday sale!  Final welding of our first set of F8X downpipes and installing them for a dyno comparison. Follow for details on our next hp contest coming soon!

Follow Us on Facebook