Buy now, pay later with Learn More

Need Help?

We've got you covered!

Sales & Service Hours

Sales & Service Hours

Customer Service

  • Monday to Friday: 8am - 6pm EST
  • Saturday/Sunday: Closed


  • Monday to Saturday: 8am - 11pm EST
  • Sunday: 9am - 10pm EST

Heartthrob Velocity Series Performance Welded Muffler 448311

Product Information
List Price:
Our Price:
Part #:
Inlet / Outlet:
409 Stainless Steel - 4" x 9" oval body, 18" body length 23" overall length
2 1/4" offset in / out


  • Patented Design
  • Double-Wrapped Shell (aluminized)
  • Fully-Welded Construction
  • High Exhaust Flow
  • Smooth, Aggressive Sound
  • Low Interior Sound
  • Heavy Aluminized or 409 Stainless Steel
  • Sold Individually

Heartthrob Velocity Series Mufflers (HVS) are a great choice for your vehicle. Heart throb exhaust has spent years developing and fine tuning the Velocity Series muffler. This Heartthrob velocity muffler flows amongst the best of welded performance mufflers on the market, is normally quieter inside the vehicle, and is still aggressive at the tail pipe.

Call it having your cake and eating it too. Our unique center wing baffle isolates sound in the HVS muffler, and combined with our welded double-wrapped shell, sends the sounds to the tail pipe. You get excellent exhaust flow, a durable welded double-wrapped shell, lower interior sounds, and a powerful sound at the tail pipes. Car, Pickup Truck, SUV, Jeep and Van Mufflers are available in 14" and 18" body lengths, and 4" x 9" oval or 5-1/2" x 11" oval body sizes. The 5-1/2" x 11" bodies flow better than the 4" x 9", and the 5-1/2" x 11" bodies are quieter, with the 18" body length being quieter than the 14", although flow is nearly identical.

409 stainless steel muffler is available in select sizes. These velocity mufflers are directional mufflers which are not reversible. Performance Parts by Heart Throb Exhaust & Muffler.

View Available Part Numbers For This Product Line


3 Year Warranty SS / 1 Year Warranty Aluminized

Backed by a one year warranty on aluminized mufflers and a three year warranty on stainless steel mufflers.


Heartthrob Velocity Series Mufflers call for experienced installation skills.  For additional information, please call us toll free at 1-877-216-5446 or 701-253-5906.