Banks 5" Monster Exhaust W/Black Tip 17-19 6.6L L5P GM Duramax BAJA-630816 When the factory lift pumps

When the factory lift pumps fail

and giving it a little extra growl with this 5" stainless DPF-back exhaust system from AFE

This Stage 2 cold air intake system produces 12 HP and 28 lbs

but maximum gains are achieved from fuel system upgrades

Proven Results: After a rigorous design and testing phase

Banks 5" Monster Exhaust W/Black Tip 17-19 6.6L L5P GM Duramax BAJA-630816 When the factory lift pumpsThis DPF back 5" exhaust system from Banks is the ultimate in fit and functionality. This kit features a constant diameter 5" mandrel bent aluminized steel tubing and a massive patented tip that will virtually eliminate backpressure after the DPF. This system offers a 192% greater flow area than the factory exhaust, and a 85% drop in backpressure leading to more power and increased fuel economy. A huge 6. 5" x 7. 5" ob round black slash cut tip