Hooker continues to push the boundaries of performance with the BlackHeart line of performance exhaust systems. We are proud to offer these Race Only X-Pipes for 96-04 4.6L Mustangs. These 2.5" X-Pipes are offered in both 304 and 409 stainless steel. They are engineered for optimal ground clearance, ease of installation, and maximum performance from your 4.6L 2V engine.