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Description
Borla 400498 - 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 th rear axle and were parallel to the axle. This muffler can also be used to create custom systems on other vehicles. Single 2. 5" Offset Inlet Dual 2. 5" Offset Outlets. The inlet and one outlet are on one end of the muffler, and 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 th rear axle and were parallel to the axle. This muffler can also be used to create custom systems on other vehicles. Single 2.5" Offset Inlet/ Dual 2.5" Offset Outlets. The inlet and one outlet are on one end of the muffler, and 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 - 2.5" 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 - 2.5" 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 | Universal muffler. Reversible design. |
| Description_FAB | Alternate muffler with Un-Notched necks is 40477. If clamping, use band clamps 18325. |
| Description_FAB | Transverse flow design, originally designed for F-Body Camaro and Firebirds |
| 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 th rear axle and were parallel to the axle. This muffler can also be used to create custom systems on other vehicles. Single 2.5" Offset Inlet/ Dual 2.5" Offset Outlets. The inlet and one outlet are on one end of the muffler, and 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.
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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]
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4.5 ★★★★★
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Product Reviews
★★★★★ 5
Nightstand Organizer
Color: Single layer-Brown
Besides being well-made and of quality material, this organizer can be multipurposed and can be used by women or men. It’s beautiful. This is a gift for my son!
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Reviewed in the United States on January 6, 2026
★★★★★ 5
Winner!
Color: Single layer-Brown
Wonderful, looks great, well made, and keeps everything tidy as intended. 👍
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Reviewed in the United States on November 12, 2025
★★★★★ 5
Perfect
Color: Single layer-Brown
It was great for me, and has a spot for everything.
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Reviewed in the United States on December 24, 2025
★★★★★ 5
Amazon is the best
Color: Single layer-Brown
Poppy loved his organizer
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Reviewed in the United States on April 22, 2026
★★★★★ 4
Decent quality for the price and lots of space for your “stuff”.
Color: Single layer-Brown
This is a nice vanity tray for the price. There are a few minor rough edges but nothing that takes away from the overall appearance and functionality. This helps keep my dresser organized and holds a lot of items. I use this for my car keys, wallet, air pods, pocket knife, glasses, and a few bottles of cologne…and still have room to spare. Easy to recommend as a gift for a guy that has everything
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Reviewed in the United States on January 8, 2026