- Air Boxes
- Air Intake Components
- Axles
- Ball Joints
- BMW
- Brake
- Bulbs
- Bump Stops
- Bushing Kits
- Bushings
- Camber Kits
- Catback
- Chassis Bracing
- Clearance Sale
- Clutch Discs
- Coilover Springs
- Cold Air Intakes
- Connecting Pipes
- Control Arms
- Coolant Reservoirs
- Dash & Interior Trim
- Diff Covers
- Differential Bushings
- Differential Install Kits
- Discount Zone
- Downpipes
- Driveline & Axle
- Engine Cooling
- Engine Electrical & Sensor
- Engine Mechanical
- Exhaust Gaskets
- Exterior
- Fans & Shrouds
- Filters & Maintenance
- Flywheels
- Fog Lights
- Fuel & Emissions
- GrimmSpeed
- Headlights
- Hitch Accessories
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.