Borla XR-1 Raceline Sportsman 3-Inch Center Inlet to 3-Inch Center Outlet T-304 Stainless Steel Round Universal Racing Muffler (40085)
Unlock ultimate exhaust flow and aggressive track ready acoustics with the Borla XR-1 Raceline Sportsman Universal Racing Muffler. Masterfully engineered for high performance racing operations and demanding street strip configurations, this universal specialty unit features a straight through high flow performance geometry that maximizes peak horsepower, expands torque delivery, and completely eliminates backpressure bottlenecks. At its mechanical core, the XR-1 Sportsman breaks away from restrictive multi chambered traditional baffle layouts by incorporating an ultra efficient, low restriction internal core wrapped in high temperature continuous filament fiber acoustic material. This advanced thermodynamic packing delivers excellent sound control under extreme exhaust heat conditions while maintaining a smooth, unrestricted escape path for spent exhaust gases. This innovative design generates an excellent scavenger effect that helps pull waste out of the combustion chamber, making it an absolute necessity for competitive applications where every fraction of a horsepower counts.
The structural engineering of the Borla 40085 addresses long term durability and fabrication flexibility under harsh track conditions through a 100% welded, heavy gauge setup. Enclosed in a compact 5-inch round by 15-inch long barrel case with a total 20-inch overall footprint, this robust assembly delivers excellent space optimization when tucked into tight racing chassis channels, street rods, or custom truck frames. Designed with ultimate installation flexibility in mind, this performance racing canister features a fully reversible design, allowing it to flow flawlessly in either direction without hurting exhaust flow velocity or altering sound properties. Built completely from CNC machined, aircraft quality, premium grade T-304 austenitic stainless steel, this heavy duty canister provides absolute maximum resistance against corrosion, structural cracking, and thermal fatigue. Delivered in a clean natural mill finish that can be easily brushed or polished prior to installation, this XR-1 Sportsman muffler brings a race proven, high energy acoustic profile and bulletproof stability to any high performance project build.
Straight Through Flow Dynamics & Universal Installation: Unlike restrictive stock replacements or generic parts that choke gas velocity, the Borla XR-1 Sportsman racing muffler utilizes a true 3-inch center inlet to 3-inch center outlet core line. The compact round shape allows fabricators to slide right into tight exhaust tunnels, while the unnotched attachment collars provide a smooth, uniform sealing surface designed explicitly for a permanent, clean weld on installation by a professional fabricator.
Fabrication Installation Guideline Note: This high performance universal racing muffler is built with smooth, unnotched attachment necks engineered for a permanent weld in configuration. If your project parameters require a clamp on setup, wide two bolt style structural band clamps must be sourced separately, as standard U-bolt clamps can crimp the premium austenitic stainless tubing necks.
Features
- Universal XR-1 Raceline Technology: High performance straight through race bred design offers the industry's absolute best balance of raw power gains and aggressive sound control
- Free Flow Performance Design: Eliminates restrictive internal baffles to optimize gas velocity, reduce exhaust backpressure bottlenecks, and maximize peak horsepower
- Reversible Configuration Flexibility: Symmetrical center to center internal geometry is fully reversible, giving fabricators total installation freedom in either flow path direction
- Continuous Filament Fiber Technology: Packed with premium high temperature continuous filament fiber (CFF) acoustic material for long lasting sound dampening that won't blow out under extreme track heat
- Compact Round Casing Profile: High clearance 5-inch round case architecture fits flawlessly into custom builds and specialized race chassis configurations with limited space constraints
- Heavy Duty 100% Welded Body: Fully welded seams deliver maximum structural strength to resist extreme backfire pressures and intense track vibrations
- Constructed completely from premium grade T-304 austenitic stainless steel for permanent structural integrity and ultimate rust resistance over low grade 400 series hardware options
- Natural Mill Fabrication Finish: Features a clean mill finish raw steel look that can be easily brushed or mirror polished by your fabricator before final assembly
- Proudly Manufactured in the USA: Built in America using high precision CNC manufacturing processes to guarantee flawless fitment and elite race proven quality
Detailed Fitment Breakdown
Universal Application Parameters & Structural Boundaries:
This premium XR-1 Raceline Sportsman racing muffler is a universal fit component. It does not carry a direct year, make, or model application listing, meaning it is explicitly engineered to be adapted to custom hot rods, race cars, muscle cars, or classic trucks running a 3.00-inch diameter custom exhaust layout.
Sizing, Connection & Dimensional Details:
Fits your custom project layout across these exact structural specifications:
- Inlet Connection Size: 3.00-Inch internal diameter center port neck
- Outlet Connection Size: 3.00-Inch internal diameter center port neck
- Muffler Case Configuration: 5.00-Inch round structural race barrel shape
- Muffler Case Body Length: 15.00 Inches of primary sound suppression coverage
- Overall Muffler Total Length: 20.00 Inches from inlet neck tip to outlet neck tip boundary
- Internal Architecture Matrix: Fully reversible, straight through high velocity racing core configuration
- Material Grade Composition: Authentic T-304 Austenitic Stainless Steel with a natural mill finish
Important Application Notes:
* Premium Materials: Built entirely with authentic T-304 stainless steel to deliver superior rust resistance and durability over lower grade T-400 series or aluminized hardware choices.
* Fabrication Requirements: Features smooth, unnotched necks designed for high quality weld in installation. Professional fabrication and welding adjustments are required for proper undercar fitment.
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
