Home » BMW 335i N54 306hp>420hp (Stage 2)
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stage 2 upgrade BMW 335i N54 306 hp.
-new EVO1 intercooler
-2 bigger downpipes without cats
-2 custommade wireless cut out exhaust systems
-stage 2 ZIPtuning ecu upgrade
-perfect ignition based on RON 98, turbo 120kPa, lambda 1 > 0.79 over rpmrange
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