3.5" to 4" Straight Reducer Silicone Coupler Black Stop **For XJ Models with 4

**For XJ Models with 4

2007-2014 GMC Sierra 3500 HD (Does Not Fit Dually Models)

Increases engine performance & cooling efficiency by 35-45% heat radiation

1993-1997 Honda Del Sol (EG2) - (3-Bolt Driver Side Mount)

A great upgrade to the standard bolt on downpipe flanges

3.5" to 4" Straight Reducer Silicone Coupler Black Stop **For XJ Models with 4100% brand new items, never used or installed. JDM Sport 4" to 3. 5" straight reducer silicone coupler hose. Made by OEM approved manufacturers with materials that meets or exceeds strict OEM requirements. 3 ply nylon reinforced silicone made to withstand high temperature and high boost applications. Universal application for connecting turbocharger, supercharger, forced induction, or intake piping. Works with any air intake, intercooler, or custom