Gibson Performance Exhaust BM0101 | Exhaust Muffler

Part Number
MWA Performance Muffler; 4 x 9 x 14 in. Oval Body; 2.5 in. Offset Inlet/Center Outlet; L-20 in.; Single Outlet; Stainless
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MWA Offset/Center Oval Muffler; Stainless

Gibson MWA Muffler delivers Maximum Sound and the Best Muffler Flow PERIOD! This Straight-thru design promotes exhaust gases to flow at the highest rates flowing only 3cfm less than a 3-in. straight pipe, improving power potential while keeping interior drone to a minimum. The MWA muffler has NO internal packing or weak baffles, allowing it to maintain a lightweight design with a unique and powerful sound. The MWA muffler is 100% Made in the USA and is constructed of high quality Stainless Steel to outlast the competition. When it's time to make your Hot Rod, Car, Off-Road toy, Truck or SUV sound and perform as good as it looks, there is no other choice than Gibson's MWA Muffler With Attitude.


  • Straight Thru Design
  • No Packing Baffles Or Weak Deflectors
  • Minimal Interior Drone
  • Aggressive Sound
  • Low Profile Non Directional
  • Quality Stainless


Body Height:4.000 in.
Body Length:14.000 in.
Body Width:9.000 in.
Inlet Connection Type:Pipe
Inlet Inside Diameter:2.500 in.
Inlet Outside Diameter:2.500 in.
Inlet Position:Offset
Inlet Type:Single Offset
Material:Stainless Steel
Muffler Count:1
Outlet Outside Diameter:2.500 in.
Outlet Position:Center
Outlet Type:Single Center Outlet
Overall Length:20.000 in.
Tip Quantity:0
WARNING CA Proposition 65:Yes
WARNING CA Proposition 65 Message:WARNING: Motor vehicles contain fuel; oils and fluids; battery posts; terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer; birth defects and other reproductive harm. These chemicals are found in vehicles; vehicle parts and accessories; both new and as replacements. When being serviced; these vehicles generate used oil; waste fluids; grease; fumes and particulates; all known to the State of California to cause cancer; birth defects; and reproductive harm.

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