Specialty Muffler

Transverse Flow design. Transverse flow mufflers were originally designed for GM F-Body Camaros and Firebirds. On these vehicles they were mounted behind the rear axle and were parallel to the axle. This muffler can also be used to create custom systems on other vehicles. Single 3" Offset Inlet/ Dual 2.5" Offset Outlets. The inlet and one outlet are on one end of the muffler, and the second outlet is on the opposite end. Reversible design for installation flexibility. High-quality T-304 austenitic stainless steel for superior corrosion resistance. 100% welded construction for strength. Free Flow design for improved performance. High-temperature continuous-filament fiber (CFF) acoustic material for sound control. Natural mill finish can be brushed or polished prior to installation. Best of all, it's made in the USA and backed by BORLA(r)'S Million-Mile warranty. Just what you'd expect from the world's most experienced (and most winning) exhaust brand.

Additional Information

Specialty Muffler - Transverse Flow Single 3" Offset Inlet/ Dual 2.5" Offset Outlets (One Outlet On Same End As Inlet And One Outlet On Opposite End) 6" x 10.25" Oval x 19" Long Body 24" OAL. Univ. Part. Reversible Design. Un-Notched Necks.

Part Type

Exhaust Muffler

Product Overview

Transverse Flow design. Transverse flow mufflers were originally designed for GM F-Body Camaros and Firebirds. On these vehicles they were mounted behind the rear axle and were parallel to the axle. This muffler can also be used to create custom systems on other vehicles. Single 3" Offset Inlet/ Dual 2.5" Offset Outlets. The inlet and one outlet are on one end of the muffler, and the second outlet is on the opposite end. Reversible design for installation flexibility. High-quality T-304 austenitic stainless steel will never rust. 100% welded construction for strength. Free Flow design for improved performance. High-temperature continuous-filament fiber (CFF) acoustic material for sound control. Natural mill finish can be brushed or polished prior to installation. Best of all, it's made in the USA and backed by BORLA(r)'S Million-Mile warranty. Just what you'd expect from the world's most experienced (and most winning) exhaust brand.

• Alternate muffler with Notched necks is 400499, use band clamps 18325 & 18330
• Transverse flow design, originally designed for F-Body Camaro and Firebirds
• Un-Notched necks are designed for weld in installation. If clamping, use band clamps 18004 & 18006.
• Universal muffler. Reversible design.

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Product Details

Reference Information

Muffler, Pro XS, 3 in. Inlet/Dual 2 1/2 in. Outlets, Transverse, Stainless Steel, Natural, Each

Precision-manufactured by the pioneers in exhaust performance, Borla ProXS mufflers feature proven, high performance technology that is surprisingly affordable. These silencers are manufactured from rust-resistant, aircraft-quality T-304 stainless steel. They'll deliver more power, improved fuel economy, prolonged engine life, and a street-commanding growl that conveys performance. Borla ProXS mufflers are available in a variety of inlet and outlet size/quantity/location configurations.