Dinan engineers designed the F55 Mini Cooper S exhaust to improve 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 hard acceleration. Like all Dinan exhausts, our F55 Free Flow Axle-Back Exhaust is engineered to combat low-RPM drone so the cabin of the vehicle is still intimate and not drowned in an excessively loud tone.

The system is built with ease in mind and utilizes a simple bolt-on installation with included mounting hardware. It is made from 100 Percent 16-gauge 304 stainless steel and will resist corrosion for years to come.

The design features twin 90 mm ceramic black and laser engraved exhaust tips for a tasteful, high-performance look that yields a maximum performance gain of 4 horsepower and 4 ft-lbs of torque.

Note: The exhaust system is only offered with black tips as one of the tips is non-functional and would lead to non-matching discoloration over time if polished tips were used.

Features and Benefits

• Max Gains: +4 HP at 5000 RPM, +4 Lb-ft at 5000В RPM
• Twin 90mm (3.5 Inch) stainlessВ steel black ceramic coated and laser engraved exhaust tips
• 100 Percent 304 stainless steel construction
• Straight through 2.5 Inch tubing
• Enjoyably louder, sportier sound
• 7 pound weight savings over stock
• Easy bolt-on installation with included mounting hardware

Details:

• Dinan Point Value: 3
• Material: T304 Stainless Steel
• Max HP Gain: 4 at 5000 RPM
• Max Torque (lb-ft) Gain: 4 at 5000 RPM
• Grade Type: Performance
• Finish: Brushed
• Body Material: T304 Stainless Steel
• Pipe Material: T304 Stainless Steel
• Clamps Included: Yes
• Exhaust Tip Quantity: 2
• Hangers Included: Yes
• Exhaust Type: Axle-Back
• Color: Black