Two Brothers Racing 005-7-1CF-KIT Racing End Cap Kit - P1 (Race Core) - Carbon Fiber Made with a high temp aerospace grade epoxy resin. The carbon fabric is made with a 33 million modulus carbon tow then impregnated with the high temperature resin under very tight tolerances. Aerospace Carbon Fiber 6 Stainless Bolts Stainless Steel Tip Fits All M2 Exhaust