Maximum PSI has created the world’s first and only factory DME tuned E46 M3 bolt on, street legal, turbo kit on the market.  By utilizing the factory ECU as our tuning platform, we are able to allow the car to retain all of the factory diagnostic checks.  The check engine light will illuminate only when there is a problem detected by the ECU.  There are no faults or codes stored or hidden on the ECU.  The catted versions will pass all OBDII readiness tests without the use of any “trickery”.  The catless versions are for off-road use only and will not pass the associated readiness tests.

Kit-Dyno(f)

E46 M3 Turbo Kits

Stage 1 is a bolt-on turbo system that turns your stock engine into a turbocharged powerhouse.  The kit runs 8-9 psi on 91-93 octane pump gas, and has the ability to run as much as 13 psi with 100 octane fuel.  Power output will vary from car to car and is also dependent on exhaust configuration.  Typical power numbers are 470-500whp SAE on pump gas, and 540-600whp on 100 octane fuel. This package is no longer available in kit form, and requires the vehicle to be shipped to Maximum PSI for in-house install.  Please email sales@maximumpsi.com for more info.

Stage 1 Includes:
-Stock DME Technique Tuning Turbo Software
-Maximum PSI cast exhaust manifold
-Precision 6266 journal bearing turbo
-Maximum PSI/Driven Innovations intake manifold
-Tial MVR wastegate
-Synapse diverter valve
-AEM Wideband O2 sensor
-Turbosmart eBoost 2 Electronic boost controller
-Dual gauge pod
-Front mount intercooler and hardware
-MAF Sensor & wiring harness
-Air temp sensor
-Spark plugs
-Fuel injectors
-Fuel rail hardware and adapters
-Walbro 485 fuel pump assembly
-3.5″ Intake pipe/ Green air filter
-304SS Charge Piping
-Silicone couplers and clamps
-Check valve for evap system
-Turbo oil fittings and lines
-3″ 304SS catted or catless downpipe
-304SS wastegate tube w/ mounting hardware
-Turbo mounting hardware and gasket
-Header mounting hardware and gaskets
-Valve cover breather assembly
-Turbo motor mount, mounting arm, and hardware
-Intake manifold brace and hardware
-ICV hose, clamps, and fittings
-Washer bottle assembly w/ hardware
-SMG reservoir relocation kit (if applicable)
-Brake duct block off plate
-Vacuum hose and fittings
-Wiring supplies
-Zip ties
-Bumper weather stripping
-Turbosmart eBoost2 electronic boost controller
-Wideband O2 sensor
-Steering column mounted gauge pod

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Stage 2 runs 8-9 psi on 91-93 octane pump gas, and has the ability to run as much as 18 psi with VP MS109 race fuel.  Power output will vary from car to car and is also dependent on exhaust configuration.  Typical power numbers are 470-500whp SAE on pump gas, and 550-675whp on MS109 fuel.  We recommend install on manual transmission cars, however there are SMG cars successfully running stage 2 kits. This package is no longer available in kit form, and requires the vehicle to be shipped to Maximum PSI for in-house install.  Please email sales@maximumpsi.com for more info.  Stage 2 utilizes the same hardware as Stage 1 with the addition of the following:

-Stock DME Technique Tuning turbo software with switchable maps for pump gas/race gas via “Sport” button
-Larger fuel injectors to support higher power using MS109 fuel
-Switchable calibration key switch and harness
-Quick drain fuel line kit for quickly changing between pump gas and race gas

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Stage 3 utilizes the factory DME and most of our Stage 2 hardware paired with a low compression built engine and larger turbocharger.  Stage 3 also uses the Sport button for the ability to switch maps between pump gas and MS109 race fuel similar to Stage 2. This package is currently not available in kit form, and requires the vehicle to be shipped to Maximum PSI for in-house install.  Please email sales@maximumpsi.com for more info.  Stage 3 runs 16 psi on 91-93 octane pump gas, and has the ability to run 25+psi on VP MS109 race fuel.  Power output will vary from car to car and is also dependent on exhaust configuration.  Typical power numbers are 600-660whp SAE on pump gas, and 800+whp on MS109. Stage 3 kits are for manual transmission cars only.  SMG cars can be converted to 6MT by us.  Stage 3 includes:

-Stock DME Technique Tuning turbo software
-Maximum PSI engine build
-Wiseco low compression pistons
-Pauter connecting rods
-ARP hardware
-Reconditioned cylinder head
-Block prep and machining
-New chains/guider/rails/oil pump
-New OEM gaskets and seals
-Maximum PSI tubular exhaust manifold
-Precision 6466 ball bearing turbo
-Maximum PSI/Driven Innovations intake manifold
-Tial MVR wastegate
-Synapse diverter valve
-Front mount intercooler and hardware
-MAF Sensor & wiring harness
-Air temp sensor
-Spark plugs
-Fuel injectors
-Fuel rail hardware and adapters
-Walbro 485 fuel pump assembly
-3.5″ Intake pipe/ Green air filter
-304SS Charge Piping
-Silicone couplers and clamps
-Check valve for evap system
-Turbo oil fittings and lines
-3″ 304SS catted or catless downpipe
-304SS wastegate tube w/ mounting hardware
-Turbo mounting hardware and gasket
-Header mounting hardware and gaskets
-Valve cover breather assembly
-Turbo motor mount, mounting arm, and hardware
-Intake manifold brace and hardware
-ICV hose, clamps, and fittings
-Washer bottle assembly w/ hardware
-SMG reservoir relocation kit (if applicable)
-Brake duct block off plate
-Vacuum hose and fittings
-Wiring supplies
-Zip ties
-Bumper weather stripping
-Turbosmart eBoost2 electronic boost controller
-Wideband O2 sensor
-Steering column mounted gauge pod
-Switchable calibration key harness
-Fuel swap kit

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Stage 4 is the ultimate in power and performance for your E46 M3.  This package utilizes many of the stage 3 components, with numerous upgrades including a monster fuel system, larger turbocharger, a huge Garrett intercooler core, and additional engine components.  Stage 4 is for manual transmission cars only. SMG cars can be converted to 6MT by us.  This package is currently not available in kit form, and requires the vehicle to be shipped to Maximum PSI for in-house install.  Please email sales@maximumpsi.com for more info.

COMING SOON