H.S.I. 3.5" Silicone Coupler for exhaust pipes with 3.5" diameter flange and needing 2-3/16" length. Connects the exhaust manifold to the chamber on many dry pipe style exhausts.
Fits the following applications:
- BUN Freestyle pipes
 
- Power Factor pipe
 
- TNT pipe
 
- RIVA dry pipe(s)
 
- Factory Pipe Products SuperJet Dry Pipes (Type 8, 9, and LTD/SS)
 
High temp and high quality silicone that has been thoroughly tested. 
Part Number: HSI-71-0011 (replacement for Factory Pipe COMHOS0093)