Exhaust› Mufflers and Resonators

Borla

Borla Heavy Duty (Truck) Muffler - 3in Center-Center 24in x 6.75in Round (Notched)

$244.99

SKU: B00F 400500

In Stock
In Stock
Ships by Aug 30
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Borla 400500 is a universal heavy-duty truck muffler designed for enhanced exhaust performance. It features a 3-inch center inlet and outlet, a 6.75-inch round by 24-inch long body, and an overall length of 29 inches. This muffler is constructed from T-304 stainless steel and offers a reversible design for flexible installation.
Show original supplier description

Part #: 400500

Developed for truck applications and other applications that require a long body muffler. Notched necks for clamp in installation using 1" wide band style clamps 18330 (clamps not included). Alternate muffler with Un-Notched necks is 400436. If clamping, use 3" wide band clamps 18006. 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.

Features:

  • Universal muffler
  • Reversible design
  • Long body design works well on SUV and truck applications
  • Notched necks are designed for clamp in installation. Use 1" wide band clamps 18327.

Specialty Heavy Duty (Truck) Muffler - 3" Center Inlet/ 3" Center Outlet 6.75" Round x 24" Long Body 29" Overall Length. Universal Part. Reversible Design. NOTched Necks.

This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandBorla
Part NumberB00F 400500

We’re here — turning wrenches, just like you.

Call us, follow along, or come say hi.

(760) 282-4645 Instagram Google

Buy with Confidence

Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

View Full Shipping Policy