Description
The Borla Boomer Spitfire Muffler Part 40059 is engineered for enthusiasts seeking enhanced exhaust performance and a distinctive sound for street or track use. Crafted from high-grade T-304 stainless steel, this fully welded muffler offers durability, corrosion resistance, and a sleek polished finish that can be brushed or polished further before installation. Its integrated polished tips add a visual appeal, making it a stylish upgrade for any vehicle. Designed with Borla’s patented race-winning technology, the Spitfire Boomer improves exhaust flow, which can translate into a modest increase in horsepower and a notable increase in sound performance.
The muffler features a 2.25-inch center inlet and dual 3-inch round DTM style tips, providing a deep, aggressive exhaust note that turns heads. Its compact oval body measures approximately 5.5 inches by 8.5 inches and extends 14 inches in length, with an overall length of 26.25 inches, fitting a wide range of universal applications. The use of high-temperature continuous-filament fiber (CFF) acoustic material ensures effective sound control, reducing drone while maintaining an exhilarating sound profile. This product is built with 100% welded construction for strength and longevity, backed by Borla’s Million-Mile Warranty, ensuring reliable performance over the long term.
Manufactured in the USA, the Borla Boomer Spitfire Muffler is designed to meet the demands of high-performance driving. Its natural mill finish allows for customization in appearance, offering flexibility for aesthetic preferences. Whether used on a street machine or on the track, this muffler is an excellent choice for those seeking improved exhaust flow, sound, and style from a trusted brand in automotive performance parts.
Features:
- High-quality T-304 stainless steel construction for durability and corrosion resistance
- Integrated polished tips for a stylish finish
- Race-proven Borla technology for improved exhaust flow
- Modest horsepower increase and aggressive sound enhancement
- Effective sound control with high-temperature acoustic material
- Universal fit with 2.25-inch center inlet and dual 3-inch tips
- Compact oval body design measuring approximately 5.5 inches by 8.5 inches
- Overall length of 26.25 inches for versatile installation
- 100% welded construction for strength and longevity
- Made in the USA with Borla’s Million-Mile Warranty

























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