BORLA 140774BC Cat-Back "S-Type" 3.5", 2.75 D RD RL AC 3.5" RD x 6" CHEVROLET SILVERADO 1500 6.2L V8 AT ymm_23 and the free flow design

and the free flow design is intended for improved performance

the Mid-Pipes in 60607 can be replaced with resonator 60608

595˝ Adjuster Thread Length 0

while maintaining the power-adding capabilities of the patented Multicore design

BORLA 140774BC Cat-Back "S-Type" 3.5", 2.75 D RD RL AC 3.5" RD x 6" CHEVROLET SILVERADO 1500 6.2L V8 AT ymm_23 and the free flow designDescription BORLA 140774BC Cat Back "S Type" 3. 5", 2. 75 D RD RL AC 3. 5" RD x 6" CHEVROLET SILVERADO 1500 6. 2L V8 AT This system is designed for factory split rear exit vehicles, except ZR2 and AT4X models. For Crew Cab with Standard Bed (6' 7") and 157" wheelbase vehicles, Adapter 60706 must be added. The 3. 5" into dual 2. 75" system delivers the classic S Type sound level with no interior drone. The small muffler behind the primary muffler in