Borla P/N 40728

Mufflers & Resonators

Description

This is the HOT set up in drag racing. This patented, award and race-winning vacuum Wave Collector was designed to replace your current open header collector and serves as a power producing merge collector and muffler -- all in a single unit. The technology in this unit results in pulling air through the engine faster, which creates more power. When an exhaust valve opens, an energy wave is created from the expanding combustion gases. When this wave encounters a lower pressure area such as a larger collector pipe or the atmosphere, a reversion wave is reflected back toward the exhaust valve. Borla(r)'s Vacuum Wave Collector Muffler ensures this wave's "anti-node" reaches the exhaust valve at the precise time for its lower pressure to help fill the combustion chamber with a fresh charge and to further extract spent gases from the chamber via a vacuum effect. Made with a patented, award and race winning multicore high flow design just like the standard XR-1 muffler for maximum power. This muffler is recommended for Dragsters, Altered, and Roadsters. Accepted in NHRA, IHRA, Hot Rod Series, Brackets, Super Chevy, and NSCA. Recommend for high horsepower applications. T-304 Stainless steel will never rust. 100% welded construction for strength. T-304 stainless steel wool for sound control. Best of all, it's made in the USA. Just what you'd expect from the world's most experienced (and most winning) exhaust brand.

XR-1 Multi-Core Collector Racing Muffler - (4x) 2.25" Inlets/ (1x) 4" Outlet 6.75" Round x 18.5" Long Body 20.5" Overall Length. Universal Part.

Specifications

BrandBorla
Part Number40728
Body Height6.750 in.
Body Length20.500 in.
Body Width6.750 in.
ConstructionAll Welded
Grade TypePerformance
Inlet Connection TypePipe
Inlet PositionCenter
Inlet TypeSingle Center
Main Piping Diameter2.250 in.
MaterialT-304 Stainless Steel
Muffler Count1
Outlet Outside Diameter4.000 in.
Outlet TypeSingle Center Outlet
Overall Length25.500 in.
ShapeRound
Weight12 lbs

Vehicle Fitment

No fitment data available.

Borla P/N 40728

Mufflers & Resonators

$724.99

Check if this fits your vehicle Select your vehicle
Professional installation available
Install times vary — call your local store for an installation quote!
Built to orderShips direct from the manufacturer to your local H&H store. Call 888-865-4024 for lead times.
XR-1 Collector
Free store pickupReady at your local H&H
22 storesAcross the Southeast
Family-ownedServing trucks since 1987
Installation availableAsk your store for a quote
4.8
5,563 reviews
Customer Reviews

Rated 4.8 across 22 stores

Every review below is a verified Google review of an H&H store — written by real customers about the people who sold, fitted and stood behind their gear.

Pensacola · 10 hours ago

Easy people to deal with and friendly. Will do business again with them.

Marietta · 23 hours ago

The staff is friendly and helpful. They went out of their way to make sure I got a warranty part replaced. Their communication is professional and they completed the work in a timely manner and it looks wonderful! Thanks!

Pelham · 23 hours ago

Bought step rails for a truck. Took less than an hour to have them installed! Great work!

Gainesville · 23 hours ago

Great service. Super quick install.

Trussville · 2 days ago

Love the new look

B K
Conyers · 3 days ago

Eric was a pleasure to work with on my LEER top! Capable service guys installed my top and it looks great. Thank you!

Cumming · 5 days ago

My experience was great Brandon was exceptionally helpful and professional and the crew did a great job installing my tonneau cover Thanks

Decatur · 1 week ago

Tyler and his team have done a couple different jobs for me this year on two different trucks. The quality of work was outstanding.

Reviews of H&H Truck & Outdoor stores, sourced from Google. They rate our stores and service, not this individual product.