PROXS 2.5 CEN IN 2.5 DUAL OUT 19X9.5X4 OVAL WO NOTCH 40348

Fitment

Choose your exact year, make, model, and trim to review this product’s applications.

Description

Borla 40348 is a reversible universal ProXS muffler with a 2.5-inch center inlet and dual 2.5-inch outlets. The oval body is listed as 19 by 4 by 9.5 inches. Its un-notched necks are intended for welding or separately purchased wide two-bolt bands. Published 24- and 25-inch overall lengths conflict, so verify the supplied part before installation.

Manufacturer resources

Manufacturer product information

Key features

• Borla 40348 is a reversible universal ProXS muffler with a 2.5-inch center inlet and dual 2.5-inch outlets.
• The oval body is listed as 19 by 4 by 9.5 inches.

Specifications

General

Construction

Install & Results

At a glance

• Universal fabrication muffler with 2.5 in center inlet and dual 2.5 in outlets. Welding or appropriate wide band clamps and adequate body clearance are required. Universal application is specification-based, not an OEM bolt-on guarantee. Source: Borla 40348 manufacturer product information; reviewed 2026-10-12.