Dinan's free flow Axle-Back exhaust for the 135i Coupe and Convertible 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 Percent 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 3.5 polished stainless, or ceramic black, tips for a tasteful high-performance look.

Features and Benefits

• More Power: +В 6 HP at 6600 RPM, + 5 Lb-ft at 6600 RPM
• Drone abatement technologies used to reduce cabin resonance
• Enjoyably louder, sportier sound
• Dual 3.5 Inch laser engraved, polished or ceramic blackВ exhaust tips
• Lighter than stock
• 100 Percent 304 stainless steel construction
• Uses the factory brackets and hangers for a factory-like fitment

Details:

• Dinan Point Value: 3
• Material: T304 Stainless Steel
• Max HP Gain: 6 at 6600 RPM
• Max Torque (lb-ft) Gain: 5 at 6600 RPM
• Grade Type: Performance
• Finish: Brushed
• Body Material: T304 Stainless Steel
• Pipe Material: T304 Stainless Steel
• Clamps Included: Yes
• Exhaust Tip Quantity: 4
• Hangers Included: Yes
• Exhaust Type: Axle-Back
• Color: Black