Flow and Performance: This Large Bore-HD exhaust system is 100% hand MIG-welded and Constructed from 4" mandrel-bent 409 stainless steel tubing for maximum flow. The smooth transition bends allow for low turbulence, increasing horsepower, torque and lowering EGT's. A mitered merge collector is also incorporated to eliminate dead space that can cause turbulence and hinder flow. Perfect Fit: This system uses all factory mounting locations providing stability. Includes OE-style bayonet hangers which are used to maintain a stable pipe location during high vibration and high heat conditions. The bayonet tip holds the hanger bushing in place for an OE-style fit that does not change with time. Some cutting maybe required during install. Please see instruction sh eet for Cab configuration for further details. 5" Angle-Cut Rolled Edge Polished Intercooled Clamp-On Tips: Finishing off the exhaust are dual side exit 5" stainless steel intercooled clamp-on tips with a polished finish. A unique laser-cut aFe Power logo black powder-coated plate is riveted on for an aggressive style.
| Exhaust Type | Filter-Back |
| Exit Position | Dual Side |
| Inlet Inside Diameter | 4.000 in. |
| Material | 409 Stainless Steel |
| Tail Pipe Diameter | 4.000 in. |
| Tail Pipe Material | Stainless Steel |
| Tip Diameter | 5.000 in. |
| Tubing Diameter | 4.000 in. |
| WARNING CA Proposition 65 | Yes |
| WARNING CA Proposition 65 Message | WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov |
WARNINGThis product can expose you to chemicals, including WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
Advanced FLOW Engineering
Constructed out of 3" mandrel-bent, 409 stainless steel tubing, this system is less restrictive than stock - allowing for maximum flow and low turbulence, improving power and throttle response...
Advanced FLOW Engineering
Simple Installation: All systems use factory mounting locations providing stability and hassle-free installation. Leak-Free Seal: High quality band clamps are included for a complete 360 degree...
Advanced FLOW Engineering
This DPF-back exhaust system is constructed of 5" mandrel-bent 409 stainless steel tubing for maximum strength and durability. Finishing off this exhaust system is a 6" diameter polished 304...
Advanced FLOW Engineering
Interested in a new exhaust system for your L5P Duramax? Check out the Large Bore-HD dual DPF-Back exhaust system by aFe. This system is constructed from 4" mandrel-bent 409 stainless steel tubing...
Advanced FLOW Engineering
aFe LARGE BORE HD exhaust systems are constructed from mandrel-bent stainless steel tubing for maximum flow. Smooth transition bends allow for low turbulence, increasing horsepower and torque, while...
