NAPA Auto Parts NAPA Montréal
2085 AV HAIG
(514) 351-4210
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NAPA Exhaust Muffler

NAPA Exhaust Muffler

Part #: EXH 21642
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.

  • 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.


Muffler Material Stainless Steel
Reversible No
Body Shape Oval
Muffler Outlet Connection Type Pipe Connection
Muffler Outlet Diameter Designation 3" I.D. Pipe Connection
Outlet Diameter 3
Inlet Count Single
Overall Length 38 in.
Sub Brand Exhaust
VMRS Code 043003001
Muffler Inlet Diameter Designation 3 in. I.D. Pipe Connection
Brand NAPA
Muffler Inlet Diameter 1 (in) 3"
Muffler Inlet Connection Type Pipe Connection
Body Length 26 in
Muffler Body Width (in) 7 in.
Outlet Count Single
Outlet Configuration Offset
Finish Aluminized
Inlet Configuration Offset
Muffler Body Height (in) 9 in.

Safety Information

Vehicle Fitment Guide

Product Reviews