Perfect for applications with limited space. If you want to lower the sound pressure level (SPL) of your CrateMufflers(R), you can install the Resonator Option. The Resonator Option is designed to attenuate overall sound. This resonator can also be used in any system of this diameter. This is perfect for customers looking to reduce the sound level 2-3 dB(A). This straight-through design will not degrade the performance of your vehicle. There is no logo embossment on this part. Reversible design for installation flexibility. High-quality T-304 austenitic stainless steel will never rust. 100% welded construction for strength. Free Flow design for improved performance. High-temperature continuous-filament fiber (CFF) acoustic material for sound control. Natural mill finish can be brushed or polished prior to installation. Best of all, it's made in the USA and backed by BORLA(R)'s Million-Mile warranty. Just what you'd expect from the world's most experienced (and most winning) exhaust brand.
Warning:May contain chemicals known in the state of California to cause cancer, or birth defects or other reproductive harm. For more information, please visitwww.p65warnings.ca.gov
- AUTHORIZED DEALER - AUTHENTIC PART
- WARRANTY INCLUDED
- FREE 30 DAY RETURNS
Part Brand: Borla
Part Number: 400937
Universal Fit
PRODUCT DESCRIPTION
Perfect for applications with limited space. If you want to lower the sound pressure level (SPL) of your CrateMufflers(R), you can install the Resonator Option. The Resonator Option is designed to attenuate overall sound. This resonator can also be used in any system of this diameter. This is perfect for customers looking to reduce the sound level 2-3 dB(A). This straight-through design will not degrade the performance of your vehicle. There is no logo embossment on this part. Reversible design for installation flexibility. High-quality T-304 austenitic stainless steel will never rust. 100% welded construction for strength. Free Flow design for improved performance. High-temperature continuous-filament fiber (CFF) acoustic material for sound control. Natural mill finish can be brushed or polished prior to installation. Best of all, it's made in the USA and backed by BORLA(R)'s Million-Mile warranty. Just what you'd expect from the world's most experienced (and most winning) exhaust brand.
Warning:May contain chemicals known in the state of California to cause cancer, or birth defects or other reproductive harm. For more information, please visitwww.p65warnings.ca.gov
Vehicle Fitment
Universal fit for any 2.25″ diameter exhaust system
Application: Universal resonator for 2.25″ systems
Included Components
1× Borla 400937 CrateMuffler resonator assembly
Product Description
The Borla 400937 CrateMuffler resonator is a universal exhaust upgrade designed for any 2.25″ diameter exhaust system. This compact, reversible unit features a straight-through design and high-quality T‑304 stainless steel construction to maintain flow and durability, even in tight installation spaces.
Built with CFF acoustic packing, it reduces sound pressure levels by approximately 2–3 dB(A), delivering a deeper tone without sacrificing performance. Fully welded, made in the USA, and backed by Borla’s Million‑Mile warranty, the 400937 is an ideal solution for custom exhaust builds and crate muffler setups seeking refined sound control and quality craftsmanship.
*Parts are for USA spec vehicles, please contact us to verify fitment on JDM & international models.
· · · SHIPPING · · ·
Free shipping across the contiguous 48 United States (excludes Hawaii and Alaska). Item(s) ships on the same day or within 1 business day. Delivery time is within 2 to 4 business days excluding next day deliveries. Orders over $750 require signature for delivery.
Canada customers - If eBay does not collect import & duty fees during checkout, the shipping carrier will collect them prior to delivery.
· · · RETURNS · · ·
Your complete shopping satisfaction is our #1 priority. If an item you ordered from us does not meet your expectations, please contact us within 30 days of receiving the item(s). If your order arrives damaged from shipping please contact us and we will provide a prepaid return label to send back for a replacement or refund.
Returned items must be in the original packaging (including plastic wrapped items) and in brand new condition.
Any returns received installed, mounted, used or missing components will be subject to return fee's.
· · · PAYMENTS · · ·
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· · · FEEDBACK · · ·
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· · · CONTACT US · · ·
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