Maximum PSI Turbo Kits

Stage 1

stage2
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

stage3
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

stage4
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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 Built motor 135 on the rollers. Ready to burn some corn. #maximumpsi #bimmerclinic Give us a call to schedule an appointment at our new 11000 square ft location in South Amboy! Your one stop shop for BMW service and performance!  Beautiful M4 getting unlocked for OBD2 flashing capabilities and RK Tunes software #maximumpsi #bimmerclinic #rktunes
 Is it destiny? #nextshop?  RK Tunes F Series N55 flash vs stock. Mod list: intake, downpipe, straight pipe. Solid gains from software.

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  • Built motor 135 on the rollers. Ready to burn some corn. #maximumpsi #bimmerclinic Give us a call to schedule an appointment at our new 11000 square ft location in South Amboy! Your one stop shop for BMW service and performance!

    2 hours ago

  • Is it destiny? #nextshop?

    February 16

  • RK Tunes F Series N55 flash vs stock. Mod list: intake, downpipe, straight pipe. Solid gains from software.

    January 25

  • Jordan from RK Tunes spitting hot fire on the dyno per customer request. Contact us for F Series software options at sales@maximumpsi.com

    January 25

  • hello i have tried to get in touch with you guys , I am interested to buy your M50 Boost-proof ICV hose kit . but i live in norway and wonder if your send parts abroad ? how much will it cost if you do ? i have sent 2 email but not got any answers . sorry for my bad English. have a nice weekend

    January 21