aFe Large Bore-HD Dual DPF-Back — Ram EcoDiesel Polished Tips

Dual rear-exit EcoDiesel DPF-back with polished five-inch tips

The aFe 49-42080-P The Large Bore-HD system uses three-inch mandrel-bent 409 stainless tubing with two polished five-inch-outlet 304 stainless clamp-on tips. It uses a factory-style flange and hangers behind the retained DPF. The exact manufacturer describes a direct bolt-on installation without cutting or modifications for the documented configurations.

Key Features

• Selected aFe part 49-42080-P.
• Current manufacturer page and selected guide identify 2020–2023 Ram 1500 with the 3.0L EcoDiesel.
• Three-inch 409 stainless main tubing, with 3-to-4-inch tailpipe assemblies and a 3.5-to-3-inch Y-merge identified in the bill.
• Two distinct polished 304 stainless tips, each four-inch inlet, five-inch outlet and 12-inch length.
• Factory-style flange and hangers; MIG-welded construction.
• Documented 140.5-, 144.5- and 153.5-inch wheelbases; match actual cab and bed.
• Band torque 40–45 ft-lb; re-tighten all clamps and hardware after 50–100 miles.

Fitment

The current exact manufacturer table and selected guide identify 2020–2023 Ram 1500 3.0L EcoDiesel. Manufacturer cab combinations are Extended Cab/long bed at 140.5-inch wheelbase, Crew Cab/short bed at 144.5 inches and Crew Cab/long bed at 153.5 inches. No newer gas-only truck, Classic or other wheelbase is approved by this scope. The full exact retailer table supplies the named rows below, subject to those equipment restrictions. Its extra generic “Longhorn” 2021 row is held outside new mapping because its identity relative to Laramie Longhorn and Limited Longhorn was not independently established; those two exact supported names remain visible.

Specifications

What's Included

• The 49-42080-P kit includes one Y-merge 05-244050 and one driver over-axle tube 05-244051.
• One passenger tailpipe assembly 05-144457 and one driver tailpipe assembly 05-144456.
• Three three-inch band clamps 05-41055.
• One polished tip 49T40501-P12 and one polished tip 49T40502-P12; black alternatives in the shared diagram are not additional contents.
• Factory isolation mounts are retained. No new DPF, muffler, sensor, intake filter or silicone coupling is established as included.

About aFe Power

aFe Power develops application-specific intake, filtration, exhaust, cooling, tuning, suspension, drivetrain, and truck-performance components supported by product testing and documented installation requirements.

Related Parts

• Exact manufacturer EcoDiesel application and polished dual-tip configuration
• Selected September 2026 diagram and 14-step procedure
• Exact selected retailer named application table
• Shop the aFe Power collection

FAQ

It is the Large Bore-HD dual DPF-back for the listed Ram 1500 3.0L EcoDiesel, with three-inch 409 stainless main tubing and two polished five-inch-outlet 304 stainless tips.

Extended Cab/long bed at 140.5 inches, Crew Cab/short bed at 144.5 inches and Crew Cab/long bed at 153.5 inches. Match the 2020–2023 EcoDiesel and actual factory connection as well.

Yes. The selected bill lists one 49T40501-P12 and one 49T40502-P12. Each is four-inch inlet by five-inch outlet and 12-inch length. The black alternatives are not also included.

No. It is a DPF-back system, installed behind the retained particulate filter. The procedure removes the original rear exhaust at its flange and band connections.

No cutting, sensor-removal or battery-disconnection step is printed. The exact manufacturer describes no cutting or modifications for its documented configurations; do not borrow another exhaust’s cutting procedure.

Fit the Y-pipe to the factory flange, then the over-axle tube, passenger and driver tailpipes, and polished tips. Keep all clamps adjustable until the complete system is aligned with safe clearance.

That underside view illustrates the black-tip alternative as an installation reference. This selected listing supplies the polished pair. Other gallery photographs show the polished configuration.

Use 40–45 ft-lb for band clamps after front-to-rear alignment, then inspect and repair leaks. Re-tighten all clamps and hardware after 50–100 miles. No factory-flange bolt torque or fixed clearance dimension is printed.

Installation Instructions

1. Confirm aFe 49-42080-P against the exact vehicle and installed equipment. Inventory the actual components and follow the selected manufacturer instructions and current vehicle service requirements.
2. Inspect all parts, let the exhaust cool and wear protective equipment. Professional installation is recommended. Support the vehicle at its specified stand locations and separately support the original exhaust; lay out the new components and keep new clamps loose for adjustment.
3. Remove the original rear exhaust by unbolting its flange and band clamps, then release the hangers from the factory isolation mounts. Retain the DPF.
4. Install the Y-pipe at the factory flange. Fit the driver over-axle tube and leave its clamp loose. Install the passenger and driver tailpipe assemblies using the supplied bands, keeping the joints adjustable.
5. Fit both selected polished tips in the desired position and orientation, keeping their clamps loose until the complete system is aligned.
6. Ensure safe clearance from wires, hoses, brake lines, body and tires. Starting at the front, evenly tighten all clamps and fasteners; the printed band-clamp torque is 40–45 ft-lb. Do not apply that number as an invented factory-flange bolt torque.
7. Start the vehicle and repair any leaks. Complete the work before removing supports. Re-tighten all clamps and hardware after 50–100 miles.

California Proposition 65 warning: this product can expose you to chemicals known to the State of California to cause cancer and reproductive harm.