SKU: 400937 | UPC: 808422009379
Borla CrateMuffler Resonator Option 2.25in Center/Center 3.5in Round x 10in - Part #400937
The Borla 400937 is a universal resonator designed for CrateMuffler systems and any 2.25-inch exhaust setup. It lowers sound pressure levels by 2-3 dB(A) while maintaining full straight-through flow for no loss in power or torque. Install it in tight spaces to refine exhaust tone without compromising performance.
Key Features
- Reversible Design: Allows flexible installation from either direction for easy adaptation to any exhaust layout.
- T-304 Stainless Steel Construction: High-quality austenitic material resists rust, with 100% welded build for maximum durability and strength.
- Straight-Through Free Flow: Delivers sound attenuation without restricting exhaust flow, preserving horsepower gains and fuel efficiency.
- Compact Dimensions: 3.5-inch round body x 10-inch long, 14-inch overall length fits limited space applications perfectly.
- Advanced Acoustic Material: High-temperature continuous-filament fiber (CFF) controls noise effectively for a refined Borla Sound of Power.
Product Notes
- Reduces overall sound pressure from CrateMuffler by 2-3 dB(A); compatible with any 2.25-inch system.
- Natural mill finish; brush or polish before install; no embossed logo.
- Made in the USA with Million-Mile warranty for long-term reliability.
Installation Notes
- Professional installation recommended.
- Center inlet 2.25-inch pipe connects to center outlet 2.25-inch pipe; uses standard clamps.
- Reversible orientation and all-welded structure ensure secure, vibration-resistant mounting.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| Universal | Universal | CrateMuffler Systems / 2.25in Exhaust | All |
Why Choose Borla?
- Leaders in stainless steel performance exhaust design and manufacturing for street, off-road, and racing.
- Boosts power, torque, fuel economy, and engine life with every system.
- Engineered for the distinctive Borla Sound of Power and motorsport precision.
Frequently Asked Questions
-
Q: What vehicles or systems does the Borla 400937 fit?
A: Universal design fits Borla CrateMuffler systems and any exhaust with 2.25-inch center inlet/outlet piping. -
Q: What material is used in this resonator?
A: T-304 austenitic stainless steel with high-temperature CFF acoustic material for rust resistance and sound control. -
Q: What warranty covers this part?
A: Backed by Borla's Million-Mile warranty, reflecting proven durability in performance applications.
Shipping & Handling
- Method: UPS Ground or FedEx Ground
- Availability: In stock - ships same or next business day
- Packaging: Securely boxed, approximately 17in x 6in x 6in
- Weight: 4 lbs
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