Use to replace the Merge X-Pipe in systems 140742, 140743, 140745, and 140746 and BC & CF versions Contains SwitchFire™ technology Designed to work with BORLA® Cat-Back™ Systems ONLY Contains 2) 2.25" inlet x 2.75 outlet adapters, 1) SwitchFire™ assembly, and 4) clamps SwithFire™ X-Pipe is 25.3" Long x 7.8" Wide x 5" High (dimensions do not include adapters)