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8L Twin Turbo engine without sacrificing driveability or reliability by optimizing the engine's performance
Constructed from 1-5/8" 16-Gauge Stainless Steel Tubing
Internally the flex section is fully sealed with a corrugated interlocking lining that improves flow and reliability
We use this data along with information you provide about your vehicle to write a tune for your specific s etup and email back your custom tune in 1-2 business days
and space requirements
Borla Cat-Back Exhaust System - Touring (140505) 1835 8L Twin Turbo engine withoutBorla Touring Cat Back Exhaust System for 2006 BMW E90 E91 325i 325xi 3. 0L 6 Cyl. Auto. Manual Trans. Rear Wheel & All Wheel Drive 4 Door 2007 2011 BMW E90, E91 328i 328xi 3. 0L 6 Cyl. Auto. Manual Trans. Rear Wheel & All Wheel Drive 4 Door. (140505) Upgrading your factory exhaust system to a Borla stainless steel performance exhaust system with a more efficient and less restrictive design can improve sound (adding more enjoyment driving your