Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 14 - Jul 19
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For Your Every Summer RSVP, with Code: SUMMER15
Description
Borla 400488 - ProXS? Muffler Notched NeckNotched necks for easy clamp on installation. 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's
Notched necks for easy clamp-on installation. 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'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 2" Offset Inlet/ 2" Offset Outlet, 4" x 9.5" Oval, 14" Long Body, 19" Overall Length. Universal Part. Reversible Design. Notched Necks. |
| Description_DEF | Exhaust Muffler |
| Description_DES | ProXS? Muffler - Notched Neck |
| Description_EXT | ProXS? Muffler 2" Offset Inlet/ 2" Offset Outlet, 4" x 9.5" Oval, 14" Long Body, 19" Overall Length. Universal Part. Reversible Design. NOTched Necks. |
| Description_INV | BorlaProXS Muffler |
| Description_MKT | Notched necks for easy clamp-on installation. 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'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
- 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
4.8 ★★★★★
Based on 1916 reviews
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Product Reviews
★★★★★ 5
An Instant Classic for Children!
Format: Hardcover
This book is lovely. The story is simple and timeless. The illustrations are bright and memorable. My grandchildren love Loren Long's books.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 8, 2026
★★★★★ 5
Unique book- creative story and pictures
Format: Hardcover
Absolutely love the black and white pictures with the yellow accents. This is a fun creative book. Perfect for my son who is obsessed with busses and the color yellow. Made from thick high quality materials. Great for young children to enjoy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 23, 2025
★★★★★ 5
A Wonderful Book for Kids!
Format: Hardcover
We love this book! The story is simple, sweet, and engaging for kids. My children enjoy reading it again and again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 7, 2026
★★★★★ 5
Beautiful
Format: Hardcover
This book is incredible. The story of the yellow bus and its life. Gorgeous illustrations and entertaining.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 24, 2026
★★★★★ 5
Great Book for Both Teachers and Students
Format: Hardcover
“The Yellow Bus Book” is such a meaningful and versatile read. It works perfectly for professional development with teachers, but it’s also great for sharing with kids. The message is simple, relatable, and powerful encouraging kindness, connection, and a positive mindset in school communities. I love that it opens the door for great conversations, whether you’re using it in a classroom, staff training, or even at home.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 2, 2026
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