Borla 40703 - XR-1 Multicore Collector Muffler Standard
SKU: 77189303718

Borla 40703 - XR-1 Multicore Collector Muffler Standard

Sale price$324.90 Regular price$361.00
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 8 - Jul 13

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Borla 40703 - XR-1 Multicore Collector Muffler StandardThis 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

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.


Specifications:

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
Description_ASM XR-1(r) Multicore Collector Racing Muffler - (4) 2.375" Inlets (1) 4.5" Outlet 6.75" Round x 18" Long Body 20" 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 - 2.375" Inlets (4)/ 4.5" Outlet 6.75" Round x 18" Long Body 20" Overall Length. Universal Part.
Description_INV Borla(r) XR-1 Collector Muffler


Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 77189303718

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.7 ★★★★★
Based on 1361 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
S
Verified Purchase
Sunshine
Belleville, US
★★★★★ 5
Soft and Glowing Skin
Really works on dry skin making it feel soft and subtle. The fragrance is nice and not overpowering. Very pleased with the product and affordable price
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 31, 2025
S
Verified Purchase
Stephanie Cooper
Lexington, US
★★★★★ 5
Love it!
Great lotion!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
K
Verified Purchase
Katherine
Draper, US
★★★★★ 5
Great lotion
Love this lotion. It's smells great and make my skin so soft all day!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 31, 2026
A
Verified Purchase
Amazon Customer
Waukegan, US
★★★★★ 4
A good product
I really don't like the smell of this one where as the coconut one smells amazing. It's a pretty good product, makes hands and skin nice and soft and it last long with the moisture
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 4, 2025
C
Verified Purchase
Carli
Omaha, US
★★★★★ 5
Vaseline Cocoa Radiant Review
One of my favorite lotions! Extremely moisturizing, leaving skin very silky and not greasy! Highly recommend and great for the price!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 11, 2026

recommand products