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Description
Borla 400487 - ProXS? Muffler Notched NeckSingle inlet and dual outlet. Notched necks for easy clamp on installation. Reversible design for installation flexibility. This muffler is generally used in a system that has a single inlet and dual outlets, but it can also be installed in a system with dual inlets and a single outlet. High quality T 304 austenitic stainless steel will never rust. 100% welded construction for strength. Free Flow design for improved performance. High temperature
Single inlet and dual outlet. Notched necks for easy clamp-on installation. Reversible design for installation flexibility. This muffler is generally used in a system that has a single inlet and dual outlets, but it can also be installed in a system with dual inlets and a single outlet. 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's Million-Mile warranty. Just what you'd expect from the world's most experienced (and most winning) exhaust brand.
Specifications:
| Description_ASM | ProXS? Muffler 3" Center Inlet/ 2.5" Dual Outlet, 4" x 9.5" Oval, 19" Long Body, 24" Overall Length. Universal Part. Reversible Design. Notched Necks. |
| Description_DEF | Exhaust Muffler |
| Description_DES | ProXS? Muffler - Notched Neck |
| Description_EXT | ProXS? Muffler 3" Center Inlet/ 2.5" Dual Outlet, 4" x 9.5" Oval, 19" Long Body, 24" Overall Length. Universal Part. Reversible Design. NOTched Necks. |
| Description_INV | BorlaProXS Muffler |
| Description_MKT | Single inlet and dual outlet. Notched necks for easy clamp-on installation. Reversible design for installation flexibility. This muffler is generally used in a system that has a single inlet and dual outlets, but it can also be installed in a system with dual inlets and a single outlet. 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's Million-Mile warranty. Just what you'd expect from the world's most experienced (and most winning) exhaust brand. |
| Description_SHO | ProXS? Muffler |
Shipping Notes
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Exchange/Return Notes
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4.5 ★★★★★
Based on 7 reviews
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Product Reviews
★★★★★ 5
GOOD INGREDIENTS FLUORIDE FREE YAAAY!!!
Color: Cinnamon Mint (Pack of 1)
I am very excited about this I hope it helps my grandson's teeth You know time will tell but it's a nice size and I'm just very grateful Thank you so much It's got some really nice ingredients in it that are unique and not in other toothpaste on top of the fact that it's fluoride free which there's no possible way I would consume any fluoride or allow my grandsons to do so if it has anything to do with me greatest blessings upon you
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Reviewed in the United States on May 16, 2026
★★★★★ 5
A wonderful tradition for our family
Format: Calendar
I'm surely hoping that the scuttlebutt saying that this will be the last years old Farmers almanac isn't true! This is the most delightful calendar, and I get one for myself and my daughter every year. But this year I couldn't find it at my normal bookstore, so I went to trusty Amazon.
It is so full of beautiful illustrations and interesting facts that I almost hate to turn to the next month
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Reviewed in the United States on March 8, 2026
★★★★★ 5
Impressive!
Format: Calendar
What a great calendar. It is full of tips, relevant to gardens and lovely pictures. It’s nice to see the phases of the moon and get food planting tips.
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Reviewed in the United States on January 23, 2026
★★★★★ 5
Best gardening calendar
Format: Calendar
Beautiful and informative. Will continue to order every year.
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Reviewed in the United States on May 13, 2026
★★★★★ 5
Great calendars
Format: Calendar
Great graphics and useful information in a well made calendar. Fast shipping from seller. I would recommend to anyone who likes to garden.
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Reviewed in the United States on January 27, 2026