Solo Performance Cat Back Exhaust Kit for 2008 - 2014 Dodge Challenger RT Automatic Transmission With Solo Quad Square Tips 2008 - 2014 Challenger RT Automatic Transmission T304 Polished Stainless Steel Dual Square Tips, All Stainless steel Piping Incorporated J pipes to reduce drone Easy Bolt on Design all parts included for insallation Free Tee shirt with every order. Sm, Med, Lg, XL , 2XL & 3XL available. PM us your size when you order or we will include an XL.