Dinan’s free flow exhaust for the 135 improves exhaust flow by reducing back pressure, resulting in increased power output and a great sporty sound that is civilized when you want it to be and pleasantly aggressive under harder acceleration. 100% stainless steel construction and exacting specifications ensure that the system fits correctly using the factory hangers and will resist corrosion for years to come. The design reduces overall weight as well and features two 3.5” polished stainless tips for a tasteful high performance look.

Features:

• +6 HP @ 6600 RPM, +5 lb/ft @ 6600 RPM
• Uses the factory brackets and hangers for a factory-like fitment
• Weight Savings
• Dinan’s Tuned Resonance Chamber Technology
• 100% 304 stainless steel construction
• 3.5″ laser engraved polished stainless steel or black ceramic exhaust tips

Installation Instructions: Dinan E8X 135i Axle-Back Exhaust D660-0025 Instructions

VEHICLE FITMENT

• 2008-2013 E82 / E88 BMW 135i – N54 N55