SLP M31014 LoudMouth Axle-Back Exhaust for 2005-2010 Ford Mustang GT/GT500

Vehicle Fitment

• 2005-2010 Ford Mustang (Base, Bullitt, GT, Shelby GT, GT500, GT500KR; 4.6L/5.4L V8)

Features

• High-flow axle-back exhaust system designed for S197 Mustang platform
• Mandrel-bent 2.5" stainless steel tubing for optimal flow
• LoudMouth muffler delete for aggressive exhaust tone
• Polished 3.5" dual-wall exhaust tips for show-quality finish
• Significantly lighter than OEM muffler assembly
• Pre-welded hangers for bolt-on installation
• Includes installation hardware and instructions
• Emissions legal in all 50 states (where applicable)
• Limited lifetime warranty from SLP Performance

Specifications

• Part Number: M31014
• Exhaust Type: Axle-back system
• Tube Diameter: 2.50" mandrel-bent
• Tip Diameter: 3.50" polished dual-wall tips
• Material: 304 and 409 stainless steel
• Fitment: Rear axle section only
• Weight: approx. 18-20 lbs
• Approx. Installation Time: ~30 minutes

Included Components

• 2x axle-back exhaust pipes with hangers
• 2x polished 3.5" dual-wall exhaust tips
• 1x installation hardware kit (clamps and instructions)

Product Description

The SLP M31014 LoudMouth Axle-Back Exhaust System is a direct fit performance upgrade for 2005-2010 Ford Mustang models equipped with 4.6L and 5.4L V8 engines - including Base, Bullitt, GT, Shelby GT, GT500, and GT500KR variants. Designed for enthusiasts who want to dramatically enhance the exhaust note and reduce backpressure without complex modifications, this bolt-on system replaces the restrictive factory mufflers with high-flow, mandrel-bent stainless steel tubing and polished 3.5" tips.

Installation is straightforward using existing factory mounting points and pre-welded hangers, with most installs completed in under 30 minutes. The LoudMouth design delivers an aggressive, muscular exhaust tone while maintaining solid build quality and long-lasting corrosion resistance. With its emissions legal status (where applicable) and limited lifetime warranty from SLP, this axle-back exhaust is a perfect choice for Mustang owners seeking performance sound and improved rear-end flow.