Flowmaster 13524320 Slimline Mufflers – 3.50 Center In 3.5 Center Out – Moderate Sound

SKU: 13524320
Cobra sidepipe and custom street rod applications
Price: $216.68 $145.66
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Flowmaster introduces its new Slimline sidepipe style mufflers. Intended for Shelby Cobra sidepipe applications, these Laminar Flow technology mufflers can be used in other applications and feature a raw 304S stainless steel case with no logos for a cleaner appearance. The inlet and outlet diameter is 3.50" with a 4.50" body and 24.00" long case. These mufflers offer a quieter alternative to the glasspack style mufflers that are traditionally used in these applications, plus the Cool Shell Technology helps prevent the outside of the muffler case from seeing the extreme temperatures associated with sidepipe applications. The Slimline mufflers are backed by Flowmaster's Lifetime Limited Warranty.

  • Stainless Steel Construction
  • Quieter Alternative for Sidepipe Applications
  • Lifetime Limited Warranty
  • Laminar Flow Technology
MaterialStainless SteelBody Length (in)24
Body Width (in)4.5Inlet PositionCenter
Outlet Diameter (in)3.5ShapeRound
Muffler SeriesSlimlineOutlet PositionCenter
Sound LevelModerate SoundBody Height (in)4.5
Inlet Diameter (in)3.5
 California Proposition 65 Information

WARNING: This product can expose you to chemicals including nickel (metallic) and chromium (hexavalent compounds) which are known to the State of California to cause cancer and birth defects, or other reproductive harm (For more information go to www.p65warnings.ca.gov)


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