12 valve stock intercooler
 

I've blown a boot on my 12 valve, can y'all tell me the inlet/outlet size of the intercooler, and the size of the rest if the intercooler piping? Ive tried measuring the circumference of them because I don't have the time to take those boots off, because they are a pain to get, but I feel that my measurement isn't 100% dead on, I don't want to buy a 3.5" boot when it's really needing to be a 3.25. So if someone can help me here, I'd greatly appreciate it! Thanks!!

Just pulled mine last night, CAC is 4", pipe from CAC to intake is 3", special transition boot. Saw a set on Ebay today. My buddy took it to his shop swearing it must leak, he called back with 19 holes and cannot get it to hold enough pressure to find more.:scare2::scare2::ouch:

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Just heard back from my guy, guess the CAC is 3-3/4, intake pipe 3"