aFe MACH Force-Xp Black Cat-Back - Ram 2500/3500 6.4L

Ram 2500/3500 6.4L MACH Force-Xp black cat-back

The aFe 49-42056-B muffler-equipped cat-back uses 4-inch mandrel-bent 409 stainless tubing and one 6-inch gloss-black, double-wall slash-cut 304 stainless tip. Current exact manufacturer applications include 2500/3500, rather than restricting every application to the older Power Wagon guide cover. 2014-2024 Ram 2500/3500 with the 6.4L HEMI, including the named 2500 Power Wagon scope, only with Crew Cab, short 6.4-foot box and 149-inch wheelbase; both 2WD and 4WD are listed. Match actual cab, bed, wheelbase and exhaust before ordering. The older selected guide cover says 2014-2022 Power Wagon; the current exact manufacturer overview and application rows explicitly include 2500/3500 through 2024. No other cab, bed, wheelbase or engine is inferred.

Key Features

• Selected aFe part 49-42056-B.
• 4-inch mandrel-bent 409 stainless tubing with a single-in/single-out muffler.
• One 6-inch black 304 stainless side-exit tip; no additional polished tip.
• Factory isolation mounts retained with the selected band and hanger arrangement.
• Crew Cab short bed, 149-inch wheelbase restriction applies to every named scope.

Fitment

2014-2024 Ram 2500/3500 with the 6.4L HEMI, including the named 2500 Power Wagon scope, only with Crew Cab, short 6.4-foot box and 149-inch wheelbase; both 2WD and 4WD are listed. Match actual cab, bed, wheelbase and exhaust before ordering. The older selected guide cover says 2014-2022 Power Wagon; the current exact manufacturer overview and application rows explicitly include 2500/3500 through 2024. No other cab, bed, wheelbase or engine is inferred. The existing 2021 Ram 3500 Laramie Longhorn scope remains UNVERIFIED: the full selected retailer table ends that exact name in 2020. Its omission does not prove physical incompatibility, and the current manufacturer engine/model row does not independently confirm the legacy trim identity. Obtain exact aFe configuration confirmation before ordering this held scope.

Specifications

What's Included

• The 49-42056-B kit includes one front adapter 05-144259, one muffler R49-91002, one over-axle assembly 05-144260, one tailpipe 05-144261, one black 304 stainless tip R49T40601-B15, two 4-inch bands 05-41172, one 3.5-inch band 05-41171 and one 4-inch U-bolt muffler hanger clamp 05-41878. The selected diagram shows the two 4-inch bands; step 7 calls for three pipe bands plus the hanger and tip band. The polished tip alternative is not an additional supplied tip. Retain original isolation mounts.
• No catalyst, wiring, sensor, fluid or unrelated intake component is included in this selected bill.

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 construction and current applications
• Complete selected eight-step guide and parts diagram
• Manufacturer-linked 2016 Ram 6.4L cat-back dyno context
• Full exact-part named fitment evidence
• Compare cat-back exhaust systems

FAQ

It is a muffler-equipped, 4-inch 409 stainless cat-back with one 6-inch black 304 stainless side-exit tip for the conditional Ram 6.4L application.

2014-2024 Ram 2500/3500 with the 6.4L HEMI, including the named 2500 Power Wagon scope, only with Crew Cab, short 6.4-foot box and 149-inch wheelbase; both 2WD and 4WD are listed. Match actual cab, bed, wheelbase and exhaust before ordering. The older selected guide cover says 2014-2022 Power Wagon; the current exact manufacturer overview and application rows explicitly include 2500/3500 through 2024. No other cab, bed, wheelbase or engine is inferred.

one front adapter 05-144259, one muffler R49-91002, one over-axle assembly 05-144260, one tailpipe 05-144261, one black 304 stainless tip R49T40601-B15, two 4-inch bands 05-41172, one 3.5-inch band 05-41171 and one 4-inch U-bolt muffler hanger clamp 05-41878. The selected diagram shows the two 4-inch bands; step 7 calls for three pipe bands plus the hanger and tip band. The polished tip alternative is not an additional supplied tip. Retain original isolation mounts.

Remove original exhaust rear to front without damaging the factory isolation mounts. Place the 3.5-inch band on the front adapter and fit the adapter over the original exhaust with the original isolation mount. Fit the muffler, slide the muffler hanger bracket over its outlet and reinstall original isolation mounts on that bracket, finger tight. Install the over-axle bend, then the tailpipe with the 4-inch band and original mount. Fit and position the selected black tip before final tightening. No cutting, battery, sensor, crossmember or ground-strap procedure is specified in this selected guide.

Keep connections loose until the complete system is positioned. Tighten the three pipe bands, muffler hanger bracket and tip band after alignment. Maintain the guide's 1/2-to-1-inch tailpipe-to-body clearance and retighten all exhaust components after 50-100 miles. No numeric torque is printed; no 40-45 ft-lb value from another system is borrowed.

The existing 2021 Ram 3500 Laramie Longhorn scope remains UNVERIFIED: the full selected retailer table ends that exact name in 2020. Its omission does not prove physical incompatibility, and the current manufacturer engine/model row does not independently confirm the legacy trim identity. Obtain exact aFe configuration confirmation before ordering this held scope.

The linked chart identifies a 2016 Ram 6.4L baseline and aFe 4-inch cat-back, without a printed finish-specific part identity. Displayed horsepower markers differ by 14.66 HP (198.84 minus 184.18) and torque markers by 23.36 lb-ft (316.17 minus 292.81); those marker pairs occupy different horizontal positions, so both are not assigned to the displayed X=3.303. Separate peak differences are 11.43 HP (324.26 minus 312.83) and 9.55 lb-ft (334.79 minus 325.24), at unprinted peak RPM. The runs were December 6, 2016 at 10:41:46 AM and 3:35:37 PM, SAE factors 0.99 and 1.00, with different temperatures/humidity. Both describe 37-inch tires, lift kit, 10% load, blade fan, second gear and 2,000-RPM start; the cat-back notes an OER filter while the baseline does not repeat it. This contextualizes the primary 15 HP/23 lb-ft claim; it does not establish a stock-every-truck, finish-specific or drone-free guarantee.

The selected eight-step guide prints no cutting or electronic procedure. This cat-back does not authorize removing the catalyst; confirm the actual original connection and packing list before work.

Installation Instructions

1. Confirm aFe 49-42056-B against the exact vehicle and installed equipment. Inventory the actual components and follow the selected manufacturer instructions and current vehicle service requirements.
2. Read the complete selected eight-step guide and confirm the actual cab, 149-inch wheelbase, 6.4L engine and selected parts before disassembly. Cool the exhaust and use appropriate professional vehicle/exhaust support. 2014-2024 Ram 2500/3500 with the 6.4L HEMI, including the named 2500 Power Wagon scope, only with Crew Cab, short 6.4-foot box and 149-inch wheelbase; both 2WD and 4WD are listed. Match actual cab, bed, wheelbase and exhaust before ordering. The older selected guide cover says 2014-2022 Power Wagon; the current exact manufacturer overview and application rows explicitly include 2500/3500 through 2024. No other cab, bed, wheelbase or engine is inferred.
3. Remove original exhaust rear to front without damaging the factory isolation mounts. Place the 3.5-inch band on the front adapter and fit the adapter over the original exhaust with the original isolation mount. Fit the muffler, slide the muffler hanger bracket over its outlet and reinstall original isolation mounts on that bracket, finger tight. Install the over-axle bend, then the tailpipe with the 4-inch band and original mount. Fit and position the selected black tip before final tightening. No cutting, battery, sensor, crossmember or ground-strap procedure is specified in this selected guide.
4. Keep connections loose until the complete system is positioned. Tighten the three pipe bands, muffler hanger bracket and tip band after alignment. Maintain the guide's 1/2-to-1-inch tailpipe-to-body clearance and retighten all exhaust components after 50-100 miles. No numeric torque is printed; no 40-45 ft-lb value from another system is borrowed.

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