BORLA 140772BC Cat-Back "Touring" 3.5", 2.75 D RD RL AC 3.5" RD x 6" GMC SIERRA 1500 6.2L V8 AT ymm_40 400˝ Diameter - Pitch 1/2-20

400˝ Diameter - Pitch 1/2-20 Wheel Stud Hole Size - Cast Iron/Steel Hub 0

while running too lean (very high air/fuel ratio

Fits Following Engines: LS Gen III LS Series small block (2003 & earlier)

Notched necks allow for easy clamp-on installation using 1" wide band style clamps 18325 (clamps not included)

BORLA 140772BC Cat-Back "Touring" 3.5", 2.75 D RD RL AC 3.5" RD x 6" GMC SIERRA 1500 6.2L V8 AT ymm_40 400˝ Diameter - Pitch 1/2-20Description BORLA 140772BC Cat Back "Touring" 3. 5", 2. 75 D RD RL AC 3. 5" RD x 6" GMC SIERRA 1500 6. 2L V8 AT This exhaust system is designed for factory split rear exit vehicles, excluding ZR and AT4X2 models. For Crew Cab with Standard Bed (6' 7") and 157" wheelbase vehicles, Adapter 60706 is required. The system features a 3. 5" inlet into dual 2. 75" outlets, providing a mellow Touring sound level with no interior drone, and includes dual 3. 5"