NAPA Auto Parts NAPA Montréal
2085 AV HAIG
(514) 351-4210
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Sat:8:00 AM-12:00 PM
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NAPA Exhaust Muffler

NAPA Exhaust Muffler

Part #: EXH 21528
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.


Quiet-Flow SS Is Available For A Vast Majority Of Top-Selling Domestic & Foreign-Nameplate Applications. In Addition To Quiet-Flow SS’s Renowned Precision Fit, Superior Flow, & OE-Style Sound, These Mufflers Feature 409 Stainless Steel Heads, Shell, Bushings, Louvered Tubes & Partitions. Quiet-Flow SS Mufflers Have A Limited Lifetime Warranty & A 90-Day Safe & Sound® Guarantee.

  • Premium Mufflers Offer 100% Stainless Steel Construction, Which Provides 3 Times The Life Expectancy vs A Typical Aluminized Replacement Muffler
  • Precisely Engineered, OEM Style Routing & Hanger Positions Ensure The Perfect Fit For Quick & Easy Installation
  • Sophisticated Design & OE Style Louvered Tube Technology That Lowers The Noise Level, For A Premium, OE Style Sound
  • Engineered w/ A Complete Internal Drainage System Design, That Helps To Prevent Condensate Acids From Collecting Between Partitions Or At The Muffler Heads, Ensuring Longer Service Life
  • 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 Outlet Connection Type Conexión de tubo
Inlet Count Single
Sub Brand Exhaust
VMRS Code 043003001
Muffler Outlet Diameter (in) 1 3/4
Muffler Inlet I.D. 1 3/4"
Muffler Inlet Count 1
Body Length 18 in
Body Diameter 7" x 9"
Inlet Diameter 1.75
Muffler Body Width (in) 7
Outlet Count Single
Muffler Outlet I.D. 2"
Finish Aluminized
Inlet Configuration Offset
Muffler Body Height (in) 9
Muffler Material Stainless Steel
Reversible No
Body Shape Oval
Muffler Outlet Diameter Designation Diámetro interno
Muffler Shape Oval
Outlet Diameter 1.75
Overall Length 28 7/8"
Muffler Inlet Diameter Designation Diámetro interno
Muffler Outlet Count 1
Muffler Shell Overall Length 28 7/8"
Brand NAPA
Muffler Inlet Diameter 1 (in) 1 3/4
Muffler Inlet Connection Type Conexión de tubo
Outlet Configuration Offset

Safety Information

Vehicle Fitment Guide

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