Flowmonster Performance Muffler 3 in Dual inlet & outlet 12599-FM 409 Stainless manifold-back-exhaust Recommended for all racing applications

Recommended for all racing applications where mufflers are required with a substantial decibel reduction over open headers

This mandrel-bent headers-back exhaust system is custom designed for most 1964-1967 GM A-body cars and is perfect for the person looking to build a true dual exhaust system

1970-1970 Chevrolet Biscayne 454 CID

moderate to mild performance tone and improves exhaust flow

1995-1999 Chevrolet Suburban 1500 (K1500 Suburban)

Flowmonster Performance Muffler 3 in Dual inlet & outlet 12599-FM 409 Stainless manifold-back-exhaust Recommended for all racing applicationsOverview The Flowmonster series of absorption style mufflers deliver a moderate tone for the enthusiast looking for a deeper, more aggressive exhaust note than most OE (Original Equipment) mufflers, unlike the racey exhaust note associated with "chambered" style mufflers. Interior construction features 3. 50 inch "straight through" perforated 409 stainless steel tube surrounded by high temperature sound absorption packing material which helps to