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Your cart is empty.Borla Pro XS Muffler; Offset/Offset; 2.25 in. Offset Inlet; 2.25 in. Offset Outlet; 14 in. x 4 in. x 9.5 in. Oval Body; 19 in. OAL; Unnotched; T-304 Stainless Steel;
Meljen D.
Reviewed in the United States on May 10, 2023
Excellent sound despite having no tipInstalled on a 3.0 Diesel pickup (just replaced the stock muffler).✔️ Great improve on the acceleration✔️ yet still has the little backflow that my stock engine needs
J. BASS
Reviewed in the United States on August 18, 2021
Used on an autocross Miata to keep weight and sound down. It works amazingly well and is nice and quiet without even using a resonator. It has a very low key rumble at idle and zero rasp at full throttle. I actually wanted more sound but I’m pleasantly surprised by how quiet it is.
Chazman
Reviewed in the United States on July 5, 2021
Bought these to replace 28 yr old Turbo Muflers (generic brand). I expected the Borla mufflers to be louder but they do have a nice tone when getting on the pedal. At idle, I heard no difference in sound but it depends on what muffler(s) you are replacing. Motor is a 355 SBC.
jake
Reviewed in the United States on February 15, 2021
Had these borla 40351 mufflers installed on my Lexus gs350. Unfortunately there is a decent amount of drone “deep buzz/hum noise” around 2-3k rpm which is highway speeds 70-80. I had a muffler delete before and it was louder but all the reviews online and forums said these have zero drone. I’ve put on about 1500 miles and the noise level is the same. Might put the OEM mufflers back on, time will tell. I also had a helmholtz resonator welded on which didn’t do much even after calculating the length needed.
Fernando
Reviewed in Mexico on February 20, 2019
Funcionó todo bien calidad precio
Ninja
Reviewed in the United States on February 23, 2016
sounds great, wish they made them to fit my charger without mods. but still a great product
bob
Reviewed in the United States on November 9, 2016
what the customer wanted
Mike D
Reviewed in the United States on June 8, 2015
Borla hands down is the best, my MK6 has the performance and sound that I was looking for. Highly recommend.
BMG
Reviewed in Canada on November 3, 2014
A little louder than I expected, but a nice sound
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