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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 A little blue for ed's M Coupe wg recirc pipe  For sale: V-band S54 turbo manifold and precision 66mm v-band turbine housing machined for TiAL MVS wastegate $800. Only used for testing on the Dyno.
 Everyone loves twins!  Horsepowers were born. Maximum PSI stage 4 on stock ECU. MS109 fuel.

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  • A little blue for ed's M Coupe wg recirc pipe

    July 03

  • Everyone loves twins!

    July 02

  • 6300whp of turbo BMW's under the roof today. Not bad for 9 cars!

    July 02

  • Mike Radowski shared a photo to Maximum PSI's Timeline.

    ...just another day at the shop

    July 02

  • For sale: V-band S54 turbo manifold and precision 66mm v-band turbine housing machined for TiAL MVS wastegate $800. Only used for testing on the Dyno.

    July 02