Coupler question
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Joined: Dec 2008
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From: Tulsa OK
Coupler question
Does anyone know the diameter of coupler I need to replace the stock one with? Is it going to be 2 different diameters? I am keeping the stock air bridge and want to use one of the smooth couplers. I'm thinking about just getting something from Lowes.
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From: Not on either liberal coast.
Rubber FERNCO couplers from the plumbing department are not meant to withstand the under hood temperatures they'll see in a confined C5 engine compartment. They will eventually crack and could cause lean codes. Many owners of '94-95-96 B body Impala SS and Caprices, Cadillac and Buick did the same thing and learned the hard way. Use a silicone coupler designed for the purpose.
I use the SLP (bump in center) coupler as offered above. It provides a little more flexibility (like oem) than the straight, more rigid silicone couplers. And I didn't have to trim the SLP coupler to make it fit just right.
Last edited by hotwheels57; Oct 5, 2009 at 07:29 PM.
