Description Reviews Borla's Stainless Steel Muffler System! Fits 2014-Current MINI Cooper S 2.0 (Part #11915) BORLA Type-S / Type-S II Cat-Back & Rear Section exhaust systems feature patented straight-through and multi-core technology to unleash hidden horsepower. Increased exhaust velocity adds power, driving excitement, fuel economy, and a distinctive more aggressive sounding “S-Type” sound - respected by motoring enthusiasts everywhere. From the design characteristics of the inner cores to the amount of sound-absorbing composite filament, all specifications of BORLA® exhaust systems are tuned on a vehicle-by-vehicle basis for an optimum blend of performance and sound. Each system is built from premium 300-series austenitic stainless steel, superior to T-400 series knockoffs (such as 409), to give you the absolute best in performance and durability. Ultra-smooth mandrel bends ensure maximum flow & power, and precision computer-controlled CNC manufacturing ensures an accurate fit. Best of all, BORLA stands behind every system with a Million-Mile Warranty. Just what you’d expect from the world’s most experienced (and most winning) exhaust brand.. Specification: Part Number: bor11915 Description: S-Type Rear Section Exhaust System; 2.5 in.; Incl. Connecting Pipes/Mufflers/Hardware/4 in. Dual Round Rolled Angle-Cut Long Tip; Dual Center Rear Exit Exhaust Type: Dual Exit Position: Dual Center Exit Style: Straight Inlet Inside Diameter: 2.500 in. Material: T-304 Stainless Steel Muffler Type: Turbo Off Road Use Only: No Outlet Outside Diameter: 2.500 in. System Type: Axle Back Tail Pipe Diameter: 2.500 in. Tail Pipe Material: Stainless Steel Tip Diameter: 4 in. Title: Borla - MINI COOPER S F56 14-19 COOPER S CONV F57 16-18 2.0L TURBO AT/MT FWD 2 DR 2.5in. Tubing Diameter: 2.500 in. Construction: All Welded Tip / Outlet Finish: Polished T-304 Stainless Steel Grade Type: Performance