Kooks 3" x 2-3/4" OEM-outlet catted stainless Y-pipe for 2009–2013 GM 1500 Series trucks and SUVs with 4.8L/5.3L engines; Kooks long-tube headers required. These Y-pipes use KOOKS standard cats, which are not recommended for forced-induction applications, and provide the OEM-style outlet transition when installing a full Kooks header and exhaust system on GM 1500 platforms.
Kooks 09-13 GM 1500 3in x OEM Out Cat SS Y Pipe Kooks HDR Req