Features: 1. TRUE equal length header, completed by CAD design and lots of dyno hours 2. Fully TIG welded, all flanges, no gas leaking. 3. #304 stainless steel muffler with #304 polished tail pips 4. #304 Stainless steel Header and Flanges 5. Fits stroker egine with stock rods, or 2mm(or less) under cylinder. 6. 8mm stainless steel Type 4 muffl...