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This is more than just an OEM turbocharger with machined internals
especially in the most-used middle range
all exhaust gases flow through the muffler
As can be seen below the intake provides a gain in performance throughout the RPM range
RENNtech ECU Upgrade 335iS E92/E93 (2010-2011- Manual & DCT N54B30to 3.0L Biturbo) motorsports This is more than justRENNtech ECU Upgrade 335iS E92 E93 (2010 2011 Manual & DCT N54B30to 3. 0L Biturbo). Up to 420 HP + +435 TQ. Gains: +100 HP & +103 LB FT Our proprietary BMW ECU upgrade offers rock solid performance from RENNtech, the foremost tuning authority on Bosch and Siemens engine control units. These same units are utilized in Mercedes Benz vehicles, which RENNtech has been tuning since electronic engine management started to show up in vehicles during the mid
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