SKU: 40057 | UPC: 808422400572
Borla Boomers Muffler Thumper 2.25in Center Inlet/ 4in Single Round Tip 4.25in x 7.88in Oval x 14in Long Body - Universal Fit
The Borla 40057 Thumper Boomer Muffler delivers the signature Borla Sound of Power through its patented race-proven design. This universal muffler fits custom exhaust setups on cars, trucks, and performance vehicles with 2.25-inch piping for gains in horsepower, torque, fuel economy, and engine life. Experience head-turning exhaust tone and motorsport styling with every throttle press.
Key Features
- T-304 Stainless Steel: Aircraft-grade material ensures corrosion resistance, strength via 100% welded construction, and a lifetime of reliable performance.
- Patented Flow Technology: Dyno-tested design improves exhaust scavenging for modest horsepower increases and responsive throttle feel.
- Precise Dimensions: 4.25in x 7.88in oval body, 14in long, 23.5in overall length with 2.25in center inlet and single 4in polished round tip for easy integration.
- Advanced Sound Control: High-temperature CFF acoustic material balances aggressive street/track tone without drone.
- Integrated Polished Tip: 4in round T-304 stainless outlet adds visual appeal and direct bolt-on style to any setup.
Product Notes
- Universal design suits street, track, or off-road custom exhaust applications.
- Pre-polished finish; brush or polish further before install for custom look.
- Ships ready for weld or clamp connection; includes Million-Mile Warranty.
Installation Notes
- Professional installation recommended.
- Connects to 2.25in exhaust pipe via center inlet; clamp or weld compatible.
- Position oval body for clearance; tip offset allows flexible routing.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| Universal | All | All | Custom Exhaust |
Why Choose Borla?
- Leaders in stainless steel exhaust since pioneering systems for Ferrari and Rolls-Royce.
- Delivers power, torque, fuel savings, and distinctive exhaust sound enthusiasts demand.
- USA-made with race-winning engineering for track-proven flow and durability.
Frequently Asked Questions
-
Q: Does the Borla 40057 fit specific vehicles?
A: This is a universal muffler for any 2.25in exhaust system, ideal for custom builds on cars, trucks, or race vehicles without direct bolt-on restrictions. -
Q: What material and finish does it use?
A: Full T-304 austenitic stainless steel construction with polished integrated 4in round tip; mill finish on body can be brushed or polished. -
Q: What warranty covers this muffler?
A: Backed by Borla's Million-Mile Warranty against defects in materials and workmanship when installed properly.
Shipping & Handling
- Method: UPS Ground or FedEx Ground
- Availability: In stock - ships same or next business day
- Packaging: Protective cardboard box, 25in L x 10in W x 10in H
- Weight: 11 lbs
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