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Product Summary

Universal Fit, 3" Inlet Diameter, 3" Outlet Diameter

  • 3-inch oval inlet and outlet designed to work directly with our oval exhaust tubing which measures 3-1/2-inch by 2-1/4-inch
  • One end with center bushing and other with offset bushing which can be used in either direction due to the reversible muffler design
  • T-304 polished stainless steel exterior houses the perforated oval tubing interior with fiberglass and stainless packing
  • Muffler case measures 13-inches long by 9-1/2-inches wide and 6-inches tall which fits well into most hot rod, muscle car, and truck chassis
  • Oval tubing, oval exhaust bends, and oval to round adapters are also available to make fabricating your custom oval exhaust system a breeze

Key Specs

MFG. Part #313541
BrandSpeedway Motors
Inlet Diameter3"
Outlet Diameter3"

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Speedway Motors 313541 Details

  • 3-inch oval inlet and outlet designed to work directly with oval exhaust tubing
  • 3-1/2-inch by 2-1/4-inch sized ovals weld to your oval exhaust pipes
  • Constructed from T-304 polished stainless steel
  • Internal construction features perforated tubing with fiberglass and stainless packing
  • One end with center bushing and other with offset bushing can be used in either direction
  • Muffler case measures 13-inches long by 9-1/2-inches wide and 6-inches tall
  • Can use our 4-bolt 409 stainless flanges to make mufflers a bolt-in

Build Your Next Exhaust System with Oval Tubing for Better Fit and Ground Clearance

As you power up your project the exhaust system needs are certainly a concern. You probably have manifolds or headers already picked out for fitment reasons like an LS swap, but south of the manifold or header exit is often left up a local exhaust shop and their limited product line. If your build needs the capacity of a 3-inch exhaust system, then you’re further compounding the issue trying to fit a pair of 3-inch “sewer pipes” under your car. Then, even if you do find the room for 3-inch dual exhaust (which often just ends in dumps at the rear axle) it is now usually the lowest part on your ride and will kiss every speed bump it meets. What to do?

The answer is in the same type of exhaust NASCAR has been using since the mid-’90s, oval exhaust tubing! The oval exhaust tubing cross section provides for increased flow while not requiring any more height than most standard exhaust systems. We offer 3-inch oval exhaust pipe for your performance exhaust needs with a cross section of 3-1/2 inches by 2-1/4 inches. That means you have the horsepower support of a 3-inch exhaust, but it only needs the typical 2-1/4-inch pipe clearance height wise, perfect for lowered vehicles or vehicles with minimal traditional exhaust routing space.

Oval Inlet and Outlet Stainless Steel Mufflers Work Seamlessly with Our Oval Tubing

Building a custom 3-inch oval exhaust pipe system means at some point you’ll need to decide on a performance muffler. Instead of trying to adapt a performance round muffler with a round inlet/outlet from round to oval exhaust pipe, we have designed and built a great sounding stainless steel performance muffler that uses oval inlets/outlets to work directly with our oval tubing. Crafted from T-304 stainless steel for a long service life, the internal design of our oval muffler features a perforated through tube with fiberglass and stainless steel packing material for that deep muscle car sound we all love. Built with a standard center inlet and offset outlet, the inlet and outlet are reversible to provide for the best fit in your vehicle’s chassis.

Our 409 stainless 4-bolt flanges are an option if you prefer bolt-together exhaust sections going into and out of your oval muffler. They are 3/8-inch thick for a leak free seal that won’t warp and can be directly welded to the muffler inlet and/or outlet. We further support your oval exhaust pipe system build needs with full oval exhaust builder kits to get the job done easily.

Speedway Motors 313541 Specifications

KEY SPECS
MFG. Part #313541
BrandSpeedway Motors
Inlet Diameter3"
Outlet Diameter3"
GENERAL
Speedway Motors Catalog Part #910-01322
ReversibleYes
Overall Length13"
Overall Width9.5"
Overall Height6"
Material TypeT-304 Stainless Steel
Inlet Size3-1/2-inch by 2-1/4-inch oval
FinishPolished
Outlet Size3-1/2-inch by 2-1/4-inch oval
Case ShapeOval
Inlet LocationCenter
Outlet LocationOffset
Outlet QuantityOne
Inlet QuantityOne
NotesThe inlet and outlet are oval shaped and muffler is reversible
GTIN Code802735039573
Sold in QuantityEach