4.0" to 2.5" 45° Silicone Reducer Sanitary (Exhaust) Tubing 5 thread holes

5 thread holes

Pressure Rating: 1500 PSI - note: crimp-on fittings are recommended for applications over 500 PSI

or those with factory turbine frames

so that it can be opened up and gripped against the top part of the fitting

do not trim down the stainless steel

4.0" to 2.5" 45° Silicone Reducer Sanitary (Exhaust) Tubing 5 thread holesApplications: Joining your intake pipe to the throttle body assembly, air metering assembly, intercooler, BOV pipe, or turbo inlet outlet. Custom compressor, intercooler or inlet piping for turbo supercharged car Custom cold air intake for nonturbo car Replacement of all factory rubber parts These silicone parts can be used in trucks, recreational vehicles, boats, or anything else with an engine.