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BMW Z4 Rotrex Supercharger Kit

Bullet Cars is pleased to release the first Rotrex supercharger based kit available for the BMW Z4. Developed and manufactured in house, the Z4 installation is an exciting OEM style kit that will transform your standard Z4 into an M3 beating machine!

Designed to suit an internally standard engine, the Intercooled Bullet Z4 kit reliably increases power from the factory 141kws up to approximately 220kws! This is a gain of over 50% and is achieved with only 7psi of boost pressure! The power delivery from the Rotrex Supercharger is extremely smooth and feels like factory installation. With an incredibly stealth installation and silent operation, it is not immediately obvious that the vehicle has been supercharged.

The kit comes complete with Rotrex Supercharger and mounting bracketry, front mount Intercooler, piping and silicon hoses, blow off valve, auxillary boost injector and mount, drive belt and pulleys and all associated fasteners. The price for the kit is $5750.

Once fitted, the vehicle will have to be tuned to suit and this can either be acheived via an ECU reflash (by your local tuner) or the fitment of an aftermarket piggyback system. We sell and recommend the XEDE system and can supply an XEDE ECU with external 2 bar map sensor and base program for $1395.

Fitting is available for $1200 plus custom tune.