ISR Universal Exhaust Silencer 4.5" - for ISR GT Series Exhausts
Exhaust needs to be drilled to accommodate the Silencer set screw hole. Set Screw not included
**DOES NOT FIT Series II Titanium GT Exhausts**
Legal only for use in competition vehicles which may never be registered, licensed, and/or used on public streets or highways; and also for use in other exempted vehicles.