Exhaust Exhaust Pipes, Systems and Components

SLP

LoudMouth 3-Inch Stainless Steel Cat-Back Exhaust System

$599.99

SKU: 31042-SLP

In Stock
In Stock
Ships by Aug 5
Free Shipping over $100
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The SLP LoudMouth Cat-Back Exhaust System is engineered to enhance the performance and sound of your 1998-2002 Chevrolet Camaro LS1 or Pontiac Firebird. The system is built for direct bolt-on installation, replacing the entire exhaust from the Y-pipe back. The stainless steel construction ensures longevity and resistance to corrosion. Fitment is specified for all 1998-2002 Chevrolet Camaro and Pontiac Firebird models equipped with the LS1 engine, including Base, Z28, Z28 SS, Formula, and Trans Am trims. Installation involves removing the existing exhaust system from the Y-pipe outlet back and securing the new system using the provided hardware or existing clamps.

MIA's Description

The SLP LoudMouth Cat-Back Exhaust System is a performance exhaust designed for the 1998-2002 Chevrolet Camaro LS1 and 1998-2002 Pontiac Firebird. Constructed from durable stainless steel, this system features 3-inch piping and 3.5-inch dual tips.

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

BrandSLP
Part Number31042-SLP
CategoryExhaust

Buy with Confidence

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