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335i xDrive Touring (F31)
Replace the OEM pre-catalytic converters
Supersprint front pipe with 100 CPSI metallic catalytic converter by HJS Motorsport
Slip-On exhaust system sounds deeper in the low rpms and serves up a delicious racing sound as the revs get higher
when higher revs are hit and the valves are permanently open
Evolve Remap - BMW E89 Z4 30i 255hp (N52) BMW 335i xDrive Touring (F31)The engine found in the Z4 30i respond well to the right type of ECU software. The software upgrade was designed and tested at our dyno facility and on road to give optimal performance with maximum safety. Significant time was taken to develop the software to give improved throttle response and factory like drivability with a progressive power delivery. Our engine tuning philosophy is to improve driveability and enjoyment. We do this by giving an