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SLP Performance

LoudMouth II Stainless Steel Cat-Back Exhaust System

$649.99 $522.95 Save $127.04

SKU: slp31212

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

It features LoudMouth II mufflers with a straight-through design and a ceramic-wrapped perforated core for improved flow. Constructed from stainless steel, this system includes mandrel-bent 2.5-inch tubing and polished 4-inch dual-wall tips.
Show original supplier description
The SLP LoudMouth II Axle-Back Exhaust system is engineered to deliver a powerful, deep muscle car sound, specifically for V8 Camaros. It utilizes LoudMouth II mufflers, which are designed with a straight-through configuration and a ceramic-wrapped perforated core to minimize flow restriction and interior resonance compared to traditional chambered mufflers. This axle-back system is lighter than the OEM muffler assembly and instills an aggressive growl under hard acceleration, while remaining more mellow and smoother than its predecessor. Constructed entirely from stainless steel, the system features mandrel-bent 2.5-inch tubing and is finished with hand-polished, 4-inch dual-wall tips for a show-quality appearance. The exhaust is emissions legal in all 50 states and includes pre-welded hangers, detailed instructions, and all necessary installation hardware, designed for installation in under an hour. This specific SLP LoudMouth II Axle-Back Exhaust system (part number 31212-SLP) is designed to fit 2010-2015 Chevrolet Camaro RWD models. It is important to confirm fitment for your specific vehicle before ordering. Please note that some sources indicate fitment for 2010-2015 Chevrolet Camaro SS RWD and 2010-2015 Camaro V8 RWD models. Additionally, one source mentions that the system fits vehicles without the factory GM ground effects kit.

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 Performance
Part Numberslp31212
CategoryExhaust
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1M+ Enthusiasts
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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.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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