Borla Pro-XS Muffler (400489) delivers aggressive sound and fitment versatility for universal custom exhaust applications. Designed for both import and domestic performance vehicles, this Pro-XS muffler features an offset notched oval design with a 2.25-inch inlet and outlet, allowing for flexible installation in tight spaces. It is built from 300 Series austenitic stainless steel for superior corrosion resistance and long-term durability.
The 100% welded construction and free-flow internal design enhance horsepower and torque while providing Borla ’s signature sound. With its natural mill finish and reversible configuration, the Pro-XS muffler is adaptable to a variety of setups and easily customized to match your vehicle’s aesthetics. Whether you're fine-tuning your street car or upgrading a truck exhaust, this universal muffler delivers proven results and long-lasting performance.
Key Features :
Universal fitment with 2.25-inch offset inlet and outlet
300 Series austenitic stainless steel construction
Reversible design allows multiple installation positions
Natural mill finish for pre-installation customization
100% welded build for maximum strength and durability
Free-flow design improves exhaust flow and power output
Backed by Borla ’s Million Mile Warranty for peace of mind
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