Borla Universal S-Type Specialty 2.75-Inch Center Inlet / Center Outlet Polished T-304 Stainless Steel Round Heavy Duty Truck Muffler (400130)
Unlock ultimate exhaust flow and aggressive acoustic tuning with the Borla Universal S-Type Specialty Heavy Duty Truck Muffler. Masterfully engineered to meet the demanding requirements of high-horsepower track setups, race cars, performance trucks, and customized SUVs, this high-efficiency unit utilizes a bidirectional center-in and center-out 2.5-inch configuration. At its mechanical core, this premium racing muffler breaks away from restrictive traditional baffle layouts by incorporating Borla’s cutting-edge straight-through internal geometry. This innovative layout features a high-flow internal network that maintains an uncompromised path for thermal gas exit, generating an excellent scavenger effect. This advanced aerodynamic design maximizes peak horsepower, expands torque delivery, and completely eliminates backpressure bottlenecks for heavy-duty towing and high-load street setups.
The structural engineering of the Borla 400130 addresses long-term durability and installation problems beneath harsh track and street conditions through a 100% welded, heavy-gauge setup. Enclosed in a substantial 6.75-inch round by 24-inch long barrel case with a total 29-inch overall footprint, this robust assembly delivers excellent space optimization when tucked beneath expansive truck beds, full-size SUV chassis loops, or heavy-duty towing rigs. The specialized long body layout packs a massive volume of advanced, high-temperature Continuous-Filament Fiber (CFF) acoustic sound control packing. This advanced insulation targets harsh frequencies to produce Borla's legendary S-Type sound signature, filtering out high-frequency rasp and annoying highway cabin drone while preserving a raw, unrestrictive mechanical tone under full throttle. Built completely from aircraft-quality, premium-grade T-304 austenitic stainless steel finished in a natural mill texture, this heavy-duty canister accommodates custom brush or mirror-polished workshop textures prior to installation. Capable of being flipped or reverse-mounted due to its completely uniform, reversible internal configuration, this elite USA-made performance component delivers bulletproof structural stability backed by Borla’s legendary Million-Mile warranty.
Distinguished S-Type Sound & Flow Dynamics: Engineered explicitly as a heavy-duty specialty truck upgrade, this large-case barrel configuration strikes the perfect balance between enhanced flow velocity and refined acoustic control. The straight-through internal core utilizes precise perforation matrices to break down high-energy sound waves without placing a physical restriction in the path of the thermal gas exit, optimizing exhaust velocity for modern domestic and import sport trucks running a high-demand 2.75-inch architecture.
Fabrication Installation Guideline Note: This high-performance universal muffler features factory-notched attachment necks engineered explicitly for clean mechanical clamp-in securement using standard 1-inch wide band style clamps (Borla part 18327, clamps not included). If your custom fabrication project demands a seamless weld-on layout instead of a service-friendly slip-fit connection, please see alternate un-notched muffler part number 401664.
Features
- Specialty Heavy Duty Truck Configuration: Large 6.75" round x 24" long case layout delivers excellent acoustic volume reduction for trucks and SUVs
- Signature S-Type Sound Level: Engineered to provide a deep, aggressive exhaust note under acceleration with a smooth, drone-free highway cruise profile
- High-Flow Straight-Through Core: Maximum-flow interior design completely eliminates power-robbing backpressure to unleash peak horsepower and torque
- Premium Continuous-Filament Fiber: Packed with high-temp CFF insulation to absorb harsh acoustic frequencies while maintaining a deep, muscular tone
- Factory-Notched Neck Bases: Precision-notched collar segments ensure a smooth slip-fit connection for fast and reliable mechanical clamping
- 100% Symmetrical Reversible Layout: Bidirectional configuration provides ultimate fabrication flexibility, allowing it to be installed in either direction
- 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
- Proudly Manufactured in the USA: Built in America by the world’s most experienced exhaust brand to guarantee flawless fitment and elite race-proven quality
Detailed Fitment Breakdown
Universal Application Parameters & Structural Boundaries:
This premium universal S-Type specialty truck muffler is compatible with a massive array of custom and production vehicle platforms under the specific architectural parameters detailed below:
Universal Automotive & Custom Exhaust Fabrication Fitment:
- Integrates seamlessly into any custom aftermarket or factory replacement exhaust line running 2.75-inch piping
- Sized perfectly for long-body single or dual muffler layouts on high-output trucks, full-size SUVs, and heavy-duty towing vehicles
- Highly recommended for late-model trucks requiring a direct-performance upgrade that works with factory 2.75" intermediate sections
- Compatible across all domestic and import car, truck, and SUV platforms with sufficient clearance for a 6.75" round body footprint
Sizing, Connection & Dimensional Details:
Fits your project layout across these exact structural specifications:
- Inlet / Outlet Connection Size: 2.75-Inch internal diameter centered neck configurations
- Muffler Case Configuration: 6.75-Inch traditional round structural barrel shape
- Muffler Case Body Length: 24.00 Inches of primary sound suppression coverage
- Overall Muffler Total Length: 29.00 Inches from inlet tip to outlet tip boundary
- Attachment Neck Style: Precision-notched base collars for mechanical clamping
- Internal Architecture Matrix: Straight-through high-flow S-Type configuration with CFF sound material
- Material Grade Composition: Authentic T-304 Austenitic Stainless Steel with a natural mill finish
- Cross-Reference Catalog Notes: Supersedes and directly replaces older factory part number 19131347
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.
- **Versatile Fabrication Paths:** Engineered as a professional universal component requiring basic cutting and mechanical modifications, providing custom fabricators with a dependable, heavy-walled material block that stands up to severe under-car heat cycles without fracturing.
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