| Body Height |
6.750 in. |
| Body Length |
20.500 in. |
| Body Width |
6.750 in. |
| Construction |
All Welded |
| Description_ASM |
XR-1(r) Multicore Collector Racing Muffler - (4) 2.25" Inlets (1) 4" Outlet 6.75" Round x 18.5" Long Body 20.5" Overall Length. Universal Part. |
| Description_DEF |
Exhaust Muffler |
| Description_DES |
XR-1 Multicore Collector Muffler Standard |
| Description_EXT |
XR-1 Multi-Core Collector Racing Muffler - 2.25" Inlets (4)/ 4" Outlet 6.75" Round x 18.5" Long Body 20.5" Overall Length. Universal Part. |
| Description_INV |
Borla(r) XR-1 Collector Muffler |
| Description_MKT |
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'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(r) muffler for maximum power. This muffler is recommended for Dragsters, Altereds, 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. |
| Description_SHO |
XR-1 Collector |
| height |
25.0 |
| Inlet Connection Type |
Pipe |
| Inlet Position |
Center |
| Inlet Type |
Single Center |
| length |
11.0 |
| LTL |
N |
| Main Piping Diameter |
2.250 in. |
| Material |
T-304 Stainless Steel |
| Muffler Count |
1 |
| Off Road Use Only |
No |
| Outlet Outside Diameter |
4.000 in. |
| Outlet Position |
Center |
| Outlet Type |
Single Center Outlet |
| Overall Length |
25.500 in. |
| Prop 65 (C, R or CR) |
CR |
| Prop 65 - Long Label |
WARNING: This product in the physical form it is sold does not present a hazard. However; operations including; but not limited to welding; brazing; or thermal cutting can expose you to chemicals including Chromium; Nickel; Cobalt; Arsenic; Cadmium and Le |
| Prop 65 - Short Label |
Proposition 65 Warning.JPG |
| Prop 65 Yes/No |
Yes |
| Shape |
Round |
| Tip / Outlet Finish |
N/A |
| Title |
XR-1(r) Multi-Core Racing Muffler Collector Quad 2.25in Inlet/ 4in Outlet 6.75in Round x 18.5in Long Body |
| Title Extended |
XR-1(r) Multi-Core Racing Muffler Collector Quad 2.25in Inlet/ 4in Outlet 6.75in Round x 18.5in Long Body Part # 40728 |
| weight |
12.0 |
| width |
11.0 |
