Porsche 914 "European Racing Headers" Muffler for 914-4 Motors Part# 914.4-158M

Write a Review
Calculated at Checkout

This muffler is designed to bolt right up to European Racing Headers 914.4 exhaust headers and the stock mounting position on your 914.4. This muffler system dramatically reduces the sound emitted from your 914.4 over open exhaust systems. It is designed for the track person who drives their car on a race circuit that has strict sound limits. This muffler assembly comes with all applicable gaskets, nuts, bolts and washers needed. We offer Ceramic Coating Services (See website)!


1 Review Hide Reviews Show Reviews

  • 5
    fit and sound level

    Posted by Mark S Schnoerr on 28th Feb 2022

    This muffler, as the street legal way to optimize the GT Racing 914-4 exhaust system, bolts onto the GT Racing Headers, is supported on the transmission studs, and exits the valence like a factory exhaust. The sound is pleasant on cruise and in traffic, but aggressive on hard acceleration without irritating the neighbors.