Exhaust Mufflers and Resonators

PRW

Billet Rail Fab. V/C's - SBM Black

$264.14

SKU: P02A 4031807

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The PRW 4031807 is a high-flow performance muffler designed to improve exhaust gas flow and enhance engine sound.
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Part #: 4031807

Vintage racers, competition junkies, and machining enthusiasts trying to save weight: Give your engine the edge. Crafted from 6061-T6 aluminum alloy, these valve covers have successfully endured rigorous testing, providing that they are built to last. The

Features:

  • Crafted From 6061-T6 Aluminum Alloy
  • Tested Under Rigorous Pressure
  • Billet Rails Help Strengthen Valve Cover And Assure Durability

Valve Cover - Stock Height - Breather Hole - Hardware Included - Aluminum - Black Anodized - Small Block Mopar - Pair

This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

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

Fitment Guaranteed

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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

BrandPRW
Part NumberP02A 4031807

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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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