What is a cat-back exhaust system?

A cat-back exhaust system replaces the factory exhaust components from the catalytic converter all the way to the tailpipe. This SLP system is designed to improve exhaust flow and alter the sound of your 2009-2013 Corvette.

What kind of sound can I expect from the LoudMouth system?

The LoudMouth system is known for producing a very aggressive and loud exhaust note. It's designed to make the LS3 engine sound much more pronounced and powerful compared to the stock exhaust.

Does this exhaust system come with all the necessary hardware for installation?

This cat-back exhaust system is designed for direct fitment. While it includes the main exhaust components, it's always recommended to consult the manufacturer's installation guide or contact SLP to confirm if any additional hardware or clamps are specifically included or recommended for installation.

SLP 2009-2013 Chevrolet Corvette LS3 LoudMouth Cat-Back Exhaust System

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Specifications

Brand: SLP
Part #: 32000
UPC: 871782001994

SLP 2009-2013 Chevrolet Corvette LS3 LoudMouth Cat-Back Exhaust System

Name: SLP 2009-2013 Chevrolet Corvette LS3 LoudMouth Cat-Back Exhaust System
Brand: SLP
Price: 911.36 USD
Availability: InStock

$911.36

On Backorder — Expected to ship by Apr 5, 2026

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Fits 2009-2013 Chevrolet Corvette. SLP LoudMouth Cat-Back Exhaust System for an aggressive exhaust note.

Key Features

Fits 2009-2013 Chevrolet Corvette.
SLP LoudMouth design for an aggressive exhaust note.
Constructed from durable stainless steel for corrosion resistance.
Designed as a direct-fit cat-back system, replacing components from the catalytic converter back.
Specifically designed for the LS3 engine found in these Corvette models.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Fits this vehicle

Chevrolet Corvette 2009-2013

Product Details

If you're looking to give your 2009-2013 Chevrolet Corvette LS3 a more aggressive exhaust note, the SLP LoudMouth cat-back system is a popular choice. This system is designed to replace your factory mufflers and exhaust piping from the catalytic converter back, opening up the exhaust flow for a deeper, louder sound that really lets the LS3 engine sing. It's a straightforward way to change the character of your Corvette's sound without altering the engine's performance characteristics.

SLP has been known for exhaust systems for a long time, and the LoudMouth design focuses on maximizing sound output. The system is constructed from durable stainless steel to resist corrosion and ensure it holds up over time. It's a well-built system that's designed to fit right onto your Corvette, making installation a manageable process for many DIYers. You'll notice a significant difference in the exhaust tone immediately after installation, giving your Corvette a more commanding presence on the road.

This cat-back system is designed to be a direct fit for the C6 and Grand Sport Corvettes from 2009 to 2013. While it's designed to enhance the sound, remember that exhaust modifications can sometimes affect emissions compliance depending on your local regulations. Always check your local laws regarding exhaust modifications. This system is a solid option if you're aiming for a loud, performance-oriented exhaust sound for your LS3 Corvette.