SPECIALTY MUFFLER RESONATOR 2.5 CENTER INOUT 5 ROUND 10 LONG BODY 15 OAL S-TYPE UN-NOTCHED 40842S

Fitment

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Description

Borla 40842S is a reversible universal muffler/resonator with 2.5-inch center inlet and outlet necks, a 5-inch round body, 10-inch body length and 15-inch overall length. The un-notched necks require welding or separately purchased wide band clamps. The historical catalog calls this component S-Type; sound depends on the custom exhaust installation.

Manufacturer resources

Manufacturer product information

Key features

• Borla 40842S is a reversible universal muffler/resonator with 2.5-inch center inlet and outlet necks, a 5-inch round body, 10-inch body length and 15-inch overall length.
• The un-notched necks require welding or separately purchased wide band clamps.

Specifications

General

Construction

Install & Results

At a glance

• Universal 2.5 in center-in/center-out muffler/resonator. Unnotched necks require welding or suitable wide band clamps; check available space. Universal application is specification-based, not an OEM bolt-on guarantee. Source: Borla 40842S manufacturer product information; reviewed 2026-10-12.