Moderate — 2–4 hours
Description
Fitment
Fitment Guaranteed
Don’t gamble
on fit.
Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | Borla |
| Part Number | B00F 40728 |
Videos
QUIET!!! Third Time is the Charm for the Camaro Exhaust? Borla XR-1 Raceline Mufflers to the Rescue.
Borla XR1 Muffler Install and Sound Coyote Procharged
Borla XR-1 4" in/out race muffler on Supra
Borla XR 1 Muffler Silverado Sound Test
Best muffler **Borla XR1 Install** Quick Easy No Welding Required! (Sound clip at the end)
borla xr-1 vs borla multi core chevy 6.0
BEST Muffler for SILVERADO Trucks! DIY Performance Exhaust - Borla XR-1
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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