BORLA 140580 Cat Back Exhaust System, 35i / xi (F30 / F34) L6-3.0L (turbo) N55, 2012-16, sound ATAK ymm_46 200 rpm when tested on

200 rpm when tested on the Akrapovič dyno against a BMW M8 Competition with a stock M Sport exhaust system for comparison

This system delivers a mellow Touring sound with no interior drone

16 female O ring steel weld bung

The Wideband O2 air/fuel ratio UEGO gauge is a must if you want to maximize your engine's power and safety

BORLA 140580 Cat Back Exhaust System, 35i / xi (F30 / F34) L6-3.0L (turbo) N55, 2012-16, sound ATAK ymm_46 200 rpm when tested onDescription BORLA 140580 Cat Back Exhaust System, 35i xi (F30 F34) L6 3. 0L (turbo) N55, 2012 16, sound ATAK This system includes a valve actuator mount but does not include a valve. It features the aggressive ATAK sound and 3. 5" polished T 304 stainless steel tips. BORLA Cat Back and Axle Back exhaust systems utilize patented straight through and multi core technology to help unleash hidden horsepower. Increased exhaust velocity adds power, driving