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Borla XR-1 Multi-Core 2.5in Center/Center 17in x 12in x 4in Round Racing Muffler-Borla-BOR401384
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Borla XR-1 Multi-Core 2.5in Center/Center 17in x 12in x 4in Round Racing Muffler

Borla
BOR401384
808422013840
Muffler
20+ Units In Stock - Ships Next Business Day
$ 273.99 $ 244.99
$ 244.99

SKU: 401384   |   UPC: 808422013840

Borla XR-1 Multi-Core 2.5in Center/Center 17in x 12in x 4in Round Racing Muffler - Universal Fit

The Borla 401384 XR-1 Multi-Core muffler delivers aggressive racing sound and performance gains for any vehicle with 2.5-inch exhaust piping. This universal, reversible design fits classic cars, late models, street, off-road, and racing setups, especially those with ground clearance challenges. Gain power, torque, better fuel economy, and extended engine life while enjoying the signature Borla Sound of Power.

Key Features

  • Multi-Core Technology: Patented core design with high-temperature continuous-filament fiber (CFF) acoustic material reduces sound without restricting horsepower or torque.
  • Compact Dimensions: 4-inch round body x 12-inch long, 17-inch overall length perfect for tight spaces and low ground clearance vehicles.
  • T-304 Stainless Steel Construction: 100% welded for maximum strength, corrosion resistance, and a polish-to-mirror finish.
  • Universal Reversible Design: 2.5-inch center inlet and outlet configuration installs in any direction for custom exhaust builds.
  • Made in USA: Crafted by Borla Performance Industries, the leader in stainless steel exhaust since the 1970s.

Product Notes

  • Verify exhaust pipe diameter and routing before purchase for perfect fit.
  • Polish stainless steel surface for custom show finish if desired.
  • Product weight: 7 lbs; securely packaged to prevent shipping damage.

Installation Notes

  • Professional installation recommended.
  • Use band clamps or welding for secure attachment to 2.5-inch piping.
  • Compatible with standard exhaust hangers; adapters may be needed for direct bolt-on.

This Part Fits

Year Make Model Submodel
Universal All All Vehicles 2.5in Exhaust Systems
1960-2024 Various Classics & Late Models Street/Off-Road/Racing

Why Choose Borla?

  • Decades of experience starting with exhaust for Rolls-Royce and Ferrari, now dominating street, off-road, and racing.
  • Engineered for real-world power increases and the thrilling Borla exhaust note enthusiasts crave.
  • Million-mile warranty backing every component for long-term reliability.

Frequently Asked Questions

  • Q: Will this muffler fit my specific vehicle?
    A: Yes, as a universal part with 2.5-inch center inlet/outlet, it adapts to most cars, trucks, and racing setups—measure your piping and space first.
  • Q: What material is used and how durable is it?
    A: T-304 stainless steel provides superior corrosion resistance and strength; fully welded with option to polish for a mirror shine.
  • Q: What warranty comes with the Borla 401384?
    A: Backed by Borla's million-mile limited warranty covering defects in materials and workmanship.

Shipping & Handling

  • Method: UPS Ground or FedEx
  • Availability: In stock - ships same or next business day
  • Packaging: Original Borla box, 18in x 10in x 6in approx.
  • Weight: 7 lbs

Request For Information

Have questions about Borla XR-1 Multi-Core 2.5in Center/Center 17in x 12in x 4in Round Racing Muffler? Fill out the form below and we'll get back to you by the next business day.
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