SLP

Loudmouth II Cat-Back Exhaust System

$525.00

SKU: M31011A

In Stock
In Stock
Ships by Aug 31
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

The SLP Mustang Loudmouth II Cat-Back Exhaust system offers a rich, throaty exhaust tone for 1998 GT and Cobra Mustangs. It includes two bullet-style mufflers, exhaust tips, flow tubes, and over-axle pipes, all crafted from durable 409 stainless steel for the piping and polished 304 stainless steel for the tips. The 2.5-inch piping leads to 3.5-inch polished tips, contributing to a distinct sound and look. Installation is estimated to take approximately 2 hours and requires light to moderate mechanical skill. The kit comes with all necessary components, including mufflers, tips, tubes, pipes, hangers, spacers, clamps, flange connections, and bolts. This product is specifically designed for the 1998 Mustang GT and Cobra models. Please note that while this product is listed, AmericanMuscle may no longer carry it and recommends checking for updated selections in the 1979-1993 Foxbody Mustang Exhaust category.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandSLP
Part NumberM31011A
CategoryExhaust

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Returns & Fitment

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.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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