Catless Downpipe for Pontiac Solstice GXP Completely Bolt on and includes all hardware for installation Durable Stainless Steel construction No restrictions super High flow. This product will eliminate the Catalytic converter It is designed for Off Road use only 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.