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

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Stage 2

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

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Stage 3

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

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Stage 4

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

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 #allmycarsarebroken  Morning before MPACT. Broken trans from my E46 sitting on the floor. Freshly assembled motor from my F80 M3. No pressure. #MPACT #bimmerclinic #maximumpsi #allmycarsarebroken #eventheomni
 #MPACT bound!  Big thanks to Gintani for next day shipping the last piece to our S55 puzzle! Hopefully this upgraded bolt and one piece crank hub will keep things together for a while! #maximumpsi #bimmerclinic #sweatshop #sendit

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