• Photo - Primary
  • Photo - Primary
  • Photo - Primary
  • Photo - Primary
  • User 9
  • Logo Image

Borla

BOR40057

Borla Boomer Muffler Thumper Oval 2-1/4in In 4in Side Round Out

$298.99
$298.99 $334.99
Low stock

FITS UNIVERSALLY

This product is compatible with all vehicles

FITS YOUR:

DOES NOT FIT YOUR:

Find products that fit your vehicle

WARNING California Proposition 65

This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

Full warning & details

Proposition 65 requires businesses to provide warnings to Californians about significant exposures to chemicals that cause cancer, birth defects or other reproductive harm. These chemicals may be in the products you purchase, in your home or workplace, or released into the environment. For more information about the specific exposures from this product, visit the link below.

www.P65Warnings.ca.gov

Free Shipping

Enjoy free shipping all U.S orders over $99.

Price Match

We stand by our competitive pricing.

Easy Returns

So you can be confident in your purchase.
Borla Boomer Muffler Thumper Oval 2-1/4in In 4in Side Round Out

$298.99

BORLA® Boomers are full-blown, high-tech, dyno and race-proven mufflers for the street or track. These eye-popping, fully polished, T-304 stainless steel mufflers feature integrated polished tips, and utilize BORLA®'s patented race-winning technology for improved exhaust flow. In addition to adding head-turning sound, they also add a modest boost in horsepower. They utilize 100% welded construction for strength. High-temperature continuous-filament fiber (CFF) acoustic material for sound control. Natural mill finish can be brushed or polished prior to installation. This muffler features a 4" fully polished tip. Available in a variety of universal-fit styles, BORLA® Boomers are made in the USA from aircraft-grade high-quality T-304 austenitic stainless steel and include a Million-Mile Warranty.

  • Universal muffler
  • Integrated tips
  • Fully polished

Orders totaling $99.99 or more qualify for free shipping, unless otherwise stated on the product page.

Orders below $99.99 ship for a flat rate of $20.

Shipping rates apply to standard shipping only and may vary for oversized, heavy, or special order items when applicable.

Click here to learn more.

Get Support

Whether you need install guidance, order support, or help diagnosing an unexpected sound, our team is ready. We work on these cars ourselves, which means real answers and useful support every time.

Get Support
View FAQs