Pay in installments of $52.12 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 19 - Jul 24
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Borla 400499 - Specialty Muffler Notched NeckTransverse Flow design. Transverse flow mufflers were originally designed for GM F Body Camaros and Firebirds. On these vehicles they were mounted behind the rear axle and were parallel to the axle. This muffler can also be used to create custom systems on other vehicles. Single 3" Offset Inlet Dual 2. 5" Offset Outlets. The inlet and one outlet are on one end of the muffler, the second outlet is on the opposite end. Notched necks for clamp on
Transverse Flow design. Transverse flow mufflers were originally designed for GM F-Body Camaros and Firebirds. On these vehicles they were mounted behind the rear axle and were parallel to the axle. This muffler can also be used to create custom systems on other vehicles. Single 3" Offset Inlet/ Dual 2.5" Offset Outlets. The inlet and one outlet are on one end of the muffler, the second outlet is on the opposite end. Notched necks for clamp-on installation using 1" wide band style clamps (clamps not included). 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.
Specifications:
| Description_ASM | Specialty Muffler - Transverse Flow - 3" Offset Inlet/ Dual 2.5" Offset Outlets 6" x 10.25" Oval x 19" Long Body 24" Overall Length. Universal Part. Reversible Design. Notched Necks. |
| Description_DEF | Exhaust Muffler |
| Description_DES | Specialty Muffler - Notched Neck |
| Description_EXT | Specialty Transverse Flow Muffler - 3" Offset Inlet/ Dual 2.5" Offset Outlets 6" x 10.25" Oval x 19" Long Body 24" Overall Length. Universal Part. Reversible Design. NOTched Necks. |
| Description_FAB | Alternate muffler with Un-Notched necks is 40474. If clamping, use band clamps 18325 & 18330.. |
| Description_FAB | Transverse flow design, originally designed for F-Body Camaro and Firebirds |
| Description_FAB | Universal muffler. Reversible design. |
| Description_FAB | Notched necks are designed for clamp in installation, use band clamps 18325 & 18330. |
| Description_INV | BORLA(r) Transverse Muffler |
| Description_MKT | Transverse Flow design. Transverse flow mufflers were originally designed for GM F-Body Camaros and Firebirds. On these vehicles they were mounted behind the rear axle and were parallel to the axle. This muffler can also be used to create custom systems on other vehicles. Single 3" Offset Inlet/ Dual 2.5" Offset Outlets. The inlet and one outlet are on one end of the muffler, the second outlet is on the opposite end. Notched necks for clamp-on installation using 1" wide band style clamps (clamps not included). 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. |
| Description_SHO | Transverse Muffler |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 16 reviews
Sort
Product Reviews
★★★★★ 5
Good
Color: Black, Size: Upgraded Base-1 Panel
It’s goood
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
★★★★★ 4
It’s ok.
Color: Beige, Size: Upgraded Base-4 Panel
It works, but not a great product. The cloth is super thin, so do not expect to use it to block noise. Wants to bent and tilt with little effort to make it so. Will not stand straight. It is a good color though.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 24, 2025
★★★★★ 3
Too Short & Skewed Foot. Easy Build & Good Material.
Color: Black, Size: Upgraded Base-1 Panel, Color: Black, Size: Upgraded Base-1 Panel
The 3 partitions I purchased were of good material but were shorter than described and the "feet" on one end of all 3 partitions was skewed a few degrees so I cannot butt them together side by side. PHOTO #1: you see me who is 63.5 inches in my shoes standing next to the 72 inch described partition minus the wheels so it is fair to say it should be 70 inches. But even so, 70 inches minus 63.5 equals 6.5 inches that should be above my head and should not include the tip of the pole and a 6 inch gap below. PHOTO #2: shows the gap when a 90 degree good end is butted against the skewed end. Good material and easy construction but just make it taller and fix the jig that skews the bottom bracket weld.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 19, 2025
★★★★★ 5
Great for “pop up home office”
Color: Grey, Size: Upgraded Base-4 Panel
If you need a space for a video conference in a hurry or to make a private corner for a kiddo to nap in this is a perfect divider that blocks light and separates spaces. It was easy to put together and collapses down to a flat panel for easy storage out of the way.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2024
★★★★★ 1
It’s a hard no from me
Color: Black, Size: Upgraded Base-1 Panel
I ordered two of these black, single screen panels several months ago. I ordered an additional four I needed a few days ago so I would have the total of 6 that I ended up needing. I did so by clicking on my past order (2 screens) item page and simply placed my recent order for 4 more. Two of the six screens have bolts that don’t fully screw down, such that one of each panel’s four points where the screen attaches to the two legs isn’t fully screwed down and flush. As a result, the screen doesn’t stay entirely vertical -It’s warped askew. Also, 3 of the six screens are different heights than the other 3. It’s clear to me that this company has ZERO QUALITY CONTROL, as there’s not anything that is even adjustable on these screens that leaves room for user error. Additionally, there are four black rubber circles that come in the “parts/screws” bag that don’t have corresponding installation instructions in the instruction manual. Just spend a little more and go with a better quality product somewhere else.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 1, 2025