Dr. Gas designed and commercialized the x-crossover in the 80's. Since
that time the systems have revolutionized exhaust science and changed
the sound of motorsports. Our XScreamâ„¢ systems are available in 2" to 4" sizes. These kits are
made in the U.S.A. with premium U.S. made aluminized-coated,
mandrel-formed bends and no compromises. Trimming and welding are
required. Also available as an Oval X-Over Kit.
4" systems do not include flanges.
*All oval x-over kits are made-to-order and are therefore NOT RETURNABLE, please allow 1-week for completion of oval kits*


