aFe MACHForce XP SS Muffler 3in Center Inlet / 2.5in Dual Outlets 18in L x 9in W x4in H Body 2020-bmw-540i-base-esi7150038 BORLA® Cat-Back™ system 140238 is

BORLA® Cat-Back™ system 140238 is a 2

All Connections To Vehicle Are Compatible w/OE Geometry

Create your own custom systems using BORLA(r) Hot Rod Builder Kits

Replace original X1 Series regulator internals with the conversion kit of your choice and you have a regulator with vastly different characteristics

aFe MACHForce XP SS Muffler 3in Center Inlet / 2.5in Dual Outlets 18in L x 9in W x4in H Body 2020-bmw-540i-base-esi7150038 BORLA® Cat-Back™ system 140238 isThe aFe Universal fit 409 Stainless Steel Performance Muffler is designed to provide a deep, throaty, powerful sound on acceleration but maintain a smooth sound at idle. This muffler is constructed of brushed finished 409 stainless steel and uses a straight through perforated core with heat resistant packing to reduce backpressure and maximize exhaust flow. You will see increased performance and improved throttle response over the factory exhaust.