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Gibson MWA Superflow Dual/Dual Oval Muffler - 4x9x14in/2.5in Inlet/2.5in Outlet - Stainless Gibson GIBBM0111
Gibson MWA Superflow Dual/Dual Oval Muffler - 4x9x14in/2.5in Inlet/2.5in Outlet - Stainless Gibson GIBBM0111
Gibson MWA Superflow Dual/Dual Oval Muffler - 4x9x14in/2.5in Inlet/2.5in Outlet - Stainless Gibson GIBBM0111
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Gibson MWA Superflow Dual/Dual Oval Muffler - 4x9x14in/2.5in Inlet/2.5in Outlet - Stainless

Gibson
GIBBM0111
677418030143
Muffler
Out of stock
$ 289.77

SKU: BM0111 | UPC: 677418030143

Gibson MWA Superflow Dual/Dual Oval Muffler - 4x9x14in/2.5in Inlet/2.5in Outlet - Stainless BM0111

The Gibson BM0111 MWA Superflow Dual/Dual Oval Muffler fits universal applications on hot rods cars off-road vehicles trucks and SUVs with 2.5-inch exhaust systems. Its straight-thru design allows exhaust gases to flow at the highest rates only 3cfm less than a 3-inch straight pipe for power gains while keeping interior drone low. Built 100% in the USA from stainless steel this muffler delivers a powerful sound and lightweight durability.

Key Features

  • Straight-Thru Design: Promotes maximum exhaust flow rates just 3cfm less than a 3-inch straight pipe to boost power potential and limit cabin drone
  • No Internal Packing: Avoids weak baffles for sustained lightweight design and consistent powerful sound over time
  • Stainless Steel Build: High-quality 409 stainless steel construction resists corrosion and lasts longer than alternatives
  • Made in USA: Fully manufactured in the United States for dependable craftsmanship and performance
  • Exact Sizing: 4x9x14-inch oval body with dual 2.5-inch inlets and dual 2.5-inch outlets fits standard 2.5-inch piping setups

Product Notes

  • Confirm 2.5-inch exhaust pipe diameter for compatibility in custom systems
  • Clean stainless surface periodically with mild soap to maintain appearance
  • Special order processing applies standard shipping used

Installation Notes

  • Professional installation recommended.
  • Slip-fit compatible with 2.5-inch clamps or direct welding to exhaust tubing
  • Secures with standard factory or aftermarket hangers no special hardware needed

This Part Fits

Year Make Model Submodel
All Years All Makes All Models 2.5in Custom Exhaust Systems

Why Choose Gibson?

  • Proven track record in performance exhaust innovation
  • Premium materials built for endurance
  • Engineered for peak flow and dynamic sound control

Frequently Asked Questions

  • Q: Will this muffler bolt directly to my exhaust?
    A: Universal design works with any 2.5-inch system via clamps or welding perfect for custom hot rod car truck or SUV builds.
  • Q: What stainless steel grade is used?
    A: 409 stainless steel provides strong corrosion resistance and heat tolerance for reliable long-term use.
  • Q: Does Gibson offer a warranty?
    A: Limited Lifetime Warranty covers manufacturing defects ensuring peace of mind.

Shipping & Handling

  • Method: Standard Ground
  • Availability: In stock - ships same or next business day
  • Packaging: Protective box 16 x 10 x 6 inches
  • Weight: 8 lbs

Request For Information

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