Maximum PSI Turbo Kits
The Maximum PSI Stage 1 catted turbo kit is the only street legal, factory DME tuned kit available for the E46 M3
Stage 2 utilizes similar hardware as Stage 1 but incorporates hardware/software upgrades for even more power on MS109 fuel
Stage 3 utilizes the factory DME with a Maximum PSI engine build using forged internals and a larger Precison turbo.
Stage 4 upgrades the fuel system from the Stage 3 kit to support more even more power when running MS109.
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Take advantage of our Black Friday sale and save some coin while you fill up with turkey and leftovers! https://www.maximumpsi.com
7 hours ago
Shaking down the bee. Clutch wasn't happy, but progress was made.
Sam's 465+whp supercharged e36. It runs e85 and one of our E85 80lb injector supercharger tunes! He is doing some upgrades them coming back for more power.
Active Autowerke supercharger kit
Maximum PSI built !
The only TRUE 3" downpipes currently on the market! In addition to an intoxicating and exotic sound, these downpipes add significant power and virtually eliminate turbo lag, making the fabled S55 engine even more responsive!
Maximum PSI got some precision 6870's in stock.
I had to steal one for my 335i.