Borla 19 Chevrolet Silverado/GMC Sierra 1500 6.2L SS Touring Catback Exhaust - Square Chrome Tips Roofs & Roof Accessories>Storage Racks the controllers for the AFM/

the controllers for the AFM/ DFM valves and NPP valves in the exhaust system should be RE-CALIBRATED according to GM Document ID 5406413

and PedalMonster throttle booster

Others build and ship without testing

High-efficiency custom-machined durable cast end tanks with wide-open inlet and outlet

Borla 19 Chevrolet Silverado/GMC Sierra 1500 6.2L SS Touring Catback Exhaust - Square Chrome Tips Roofs & Roof Accessories>Storage Racks the controllers for the AFM/EXCEPT ZR2 & AT4X models. Factory Split Rear Exit ONLY. This system features bright chrome on T 304 stainless steel tips. Add Adapter 60706 for Crew Cab with Standard Bed (6' 7") 157" Wheelbase vehicles. Borla(r) Cat Back(tm) & Axle Back exhaust systems feature patented straight through and multi core technology designed to unleash hidden horsepower. Increased exhaust velocity adds power, driving excitement, fuel economy, and the distinctive Borla(r)