aFe® 49-91004 - Mach Force XP™ 409 SS Muffler Delete Pipe (4" ID, 4" OD)

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In Stock (20) - Ships Tomorrow 01.22.18
Universal Fit
Fitment Notes:
  • Not Vehicle Specific
  • To ensure precise fit, please check muffler shape, length and inlet diameter: the latter should match your exhaust pipe diameter.
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Product Details

aFe Accessories

Universal Mach Force XP™ 409 SS Muffler Delete Pipe (49-91004) by aFe®. Material: 409 SS. Eliminate your restrictive muffler for better performance and aggressive sound with this Muffler-Delete Pipe. Factory type connections allow you to return to stock configuration when needed.

Notes: To ensure precise fit, please check muffler shape, length and inlet diameter: the latter should match your exhaust pipe diameter.

aFe FAQsaFe - WarrantyaFe About


Series: Mach Force XP™
Material: 409 SS
Pipe lnlet Diameter: 4"
Pipe Outlet Diameter: 4"
Body Length: 30"
Inlet - Outlet Configuration: Center Inlet - Center Outlet


  • Increased performance
  • Improved throttle response
  • Reduced backpressure
  • Deep, throaty, powerful sound
  • Constructed of 409 stainless steel
  • Embossed with the aFe Power logo
  • Backed by a limited 2-year warranty

Get increased performance you can feel, and power you can hear, with the aFe Universal Fit 409 Stainless Steel Performance Muffler. The straight through perforated core with heat resistant backing will reduce backpressure to maximize exhaust flow. When you accelerate you'll feel the improved throttle response and increased power, and you'll hear the deep, throaty, sound of power.

The Universal Fit Performance Muffler is made of 409 stainless steel for long lasting durability. It features an attractive brushed finish and the aFe Power logo embossed on the muffler body. This muffler also features a 2-year limited warranty.

aFe® (Advanced Flow Engineering, Inc.) manufactures performance products for late model cars, light trucks and SUVs. The company was founded in 1999 with an initial concentration on high performance air filters. Since then, the company product line has broadened to include cold air intakes, fluid filters, exhaust systems, intake manifolds, intercoolers, programmers, differential covers, transmission pans and throttle body spacers. The team of engineers, machinists, production and sales people at aFe® have many years of experience in their respective positions, and together work to ensure they produce the best automotive products on the market.

Part Number:

Warranty Information

aFe warrants their products to be free from manufacturer's defects due to workmanship and material. This warranty applies only to the original purchaser of the product and is non-transferable. Proof of purchase of the aFe product is required for all warranty claims. Warranty is valid provided aFe instructions for installation and/or cleaning were properly followed. Proper maintenance with regular inspections of product is required to insure warranty coverage. Damage due to improper installation, abuse, unauthorized repair or alteration is not warranted. Incidental or consequential damages or cost, including installation and removal of part, incurred due to failure of aFe product is not covered under this warranty. All warranty is limited to the repair and/or replacement of the aFe part.

aFe OE replacement filters are warranted against manufacturer defects for as long as you own the vehicle and it is properly maintained using our filter cleaning kit.

  • aFe universal clamp on air filters and air intake kits are warranted against manufacturer defects for 2 years
  • aFe Diesel Fuel System are warranted against manufacturer defects for 2 years
  • aFe Sprint Booster are warranted against manufacturer defects for 3 years
  • aFe racing filters are warranted against manufacturer defects for 1 year
  • aFe Electronics (Tuners/Modules) are warranted against manufacture defects for 2 years. If the item has been opened, aFe will offer an exchange for the same product only
  • All warranty is contingent on proper installation and proper maintenance using our restore kit
  • All other aFe products such as exhaust systems, intake manifolds, turbo chargers, intercoolers and differential covers have a 2-year warranty
Magnuson-Moss Warranty Act:
Legally, a vehicle manufacturer cannot void the warranty on a vehicle due to an aftermarket part unless they can prove that the aftermarket part caused or contributed to the failure in the vehicle (per the Magnuson Moss Warranty Act (15 U.S.C. 2302(C)) Learn More

Vehicle Fitment

This part is universal

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