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FR SPORT
Borla Shorty 2-3/8in In 4-1/2in Out XR-1 Racing Collector Muffler 40977
$747.99
Frequently bought together
Free shipping on orders over $150
Hassle-free returns & exchanges
Secure checkout — Shop Pay, Apple Pay & all major cards
Product details
BOR XR-1 Mufflers
Exhaust Muffler
Merge Collector And Muffler In A Single Unit
This is THE HOT set up in drag racing. This patented, award and race-winning product was designed to replace your current open header collector and serves as a power producing merge collector and muffler -- all in a single unit.
XR-1 Stainless Collector Muffler.
SKU: 0K8Q5
Why customers choose Ride Rite
Tesla & EV specialists
Every part is matched to your exact car — verified fitment, not a generic catalog.
Mobile install across the Bay Area
Skip the shop — our team comes to you for professional installation throughout California.
Free, fast shipping
Orders over $150 ship free and fully tracked, with most parts leaving the warehouse quickly.
Real human support
Talk to actual suspension specialists before and after your purchase — never a call center.
