AA Performance Products VW Muffler, Phat Boy, Stainless Steel, 251 00 MMS, VW Bug, Super Beetle, Ghia, Bus

AA Performance Products VW Muffler, Phat Boy, Stainless Steel, 251 00 MMS, VW Bug 49-77, Super Beetle 71-79, Ghia 55-74, Bus 50-71

Give your air-cooled Volkswagen a deep, aggressive exhaust note and high-flow performance with this Stainless Steel Phat Boy muffler. Built by AA Performance Products under part number 251 00 MMS, this distinctive exhaust system is a popular upgrade for enthusiasts looking to enhance both the sound and visual stance of their classic ride.

Designed to fit classic VW models with aftermarket systems, this muffler features a durable black finish that stands up to the elements while delivering optimized exhaust scavenging. Whether you are finishing a custom Beetle build or refreshing your weekend cruiser, this Phat Boy muffler combines bold looks with reliable construction for your VW.

Installation Note: Do not mix headers and mufflers from other manufacturers. The muffler may not align properly with the header causing the muffler to hit the body or hang lower to the ground. If you are unsure which header you have you are better off replacing the header and muffler together to ensure a proper fit. Be sure your header fits with your muffler before purchase. Most headers and mufflers are coated with a layer of paint which acts as a rust inhibitor, and will burn off once the exhaust gets hot. It is best to remove this coating and apply a quality hi-temp paint. Exhaust systems are not warranted against rust. High exhaust temperatures may cause discoloration or bluing in Ceramic and Stainless, this is not a manufacturing defect. We do not warranty systems against discoloration or bluing. 

Application Note: This is a performance product and is not designed to be used in a stock application, this product can be used on most Volkswagen models with slight modifications. If you have questions please contact us before purchase.