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Columbus,  OH  43215-1124
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NAPA Muffler

NAPA Muffler

Part #: EXH 21904
Line: NAPA Exhaust
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Features & Benefits

Warranty: Standard : Limited Lifetime, Replacement Will Be Issued for Unit that Proves Defective During Normal Use on the Vehicle on Which It Was Originally Installed. Extended Only to the Owner of the Vehicle on Which the Unit is Installed-Not Transferable.

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NAPA, w/ The Capability To Combine Industry-Leading Coverage w/ A Direct Fit OE-Style Replacement, 100% Structural Stainless Steel Muffler, Which Provides Over Three Times The Average Lifespan Of Competitors' Aluminized Replacement Mufflers.


  • In Addition To NAPA's Renowned Precision Fit, Superior Flow, & OE-Style Sound, These Mufflers Feature 409 Stainless Steel Heads, Shell, Bushings, Louvered Tubes & Partitions.
  • Quiet-Flow SS Is Available For A Vast Majority Of Top-Selling Domestic & Foreign-Nameplate Applications.
  • 100% Structural Stainless Steel Construction.
  • 3X The Life Expectancy Vs. Typical Aluminized Mufflers
  • OE-Style Louvered Tube Technology Lowers Noise Level For Premium OE-Style Sound Compared To Straight Performance Tubes
  • Precise OE-Style Routing & Hanger Positions For Quick & Easy Installation
  • Comprehensive Internal Drainage System For Corrosion Resistance
  • OE-Style Domed Heads Help Reduce Radiated Noise Compared To Flat Heads. Spun-Locked Heads To Help Prevent Rupture
  • Limited Lifetime Warranty & Exclusive 90-Day Safe & Sound Guarantee.

Specifications

Brand NAPA
Reversible No
Body Length 13 in
Body Configuration Oval
Overall Length 23.000 in
VMRS Code 043003001
Muffler Outlet I.D. 2 3/4 in OD
SDS Required No
Finish Natural
Grade Type Premium

Safety Information

Vehicle Fitment Guide

Product Reviews