Solo Performance Cat Back Exhaust Kit for 2008 - 2014 Dodge Challenger SRT\8 With Quad Square Tips 2008 - 2014 Challenger SRT\8 Dual Square tips. T304 Polished Stainless Steel Dual Square Tips Incorporated J pipes to reduce drone. All Pipes made from Stainless Steel. 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.