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

5 thread holes

do not trim down the stainless steel

as well as a sleek & stylish matte black finish

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

And with simple 15 degree cuts the math is easy (x3 for a 45*

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.