What Are Xr1's
It is a muffler that Borla makes. A lot of people including myself have replaced their SLP resonator on their SLP loudmouth. Eliminates a lot of the rasp that is associated with the loudmouth after you install long tube headers. Borla XR-1 part # 40085.
Trending Topics
Fantastic Muffler, can't go wrong with Borla. XR-2 was out for a little while. TITANIUM!!!! Cancelled because no one was buying them. I can't understand why, they were only $672 a piece 
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Originally Posted by riddler
Fantastic Muffler, can't go wrong with Borla. XR-2 was out for a little while. TITANIUM!!!! Cancelled because no one was buying them. I can't understand why, they were only $672 a piece
Hence my above statement. I had borla on my 1997 TJ Wrangler. Header and full exhaust for just a shade under $850.
It kicked ***. And yes I said "header"
TECH Addict
Joined: Jun 2005
Posts: 2,660
Likes: 14
From: England
Originally Posted by tim99ws6
I am running them on my TSP true dual kit also. They are hands down the best true dual muffler out there.
