Just recently bought a fairly good condition downpipe for my 88' Scirocco
16v however before installing it I intended on cleaning it up a bit. I was wondering if there are any issues if I get the thing sandblasted then putting an exhaust coating to hopefully add additional life into the thing.If anyone has any experience or tips on what I can do that'd be greatly appreciated.
No , there's no issues, unless its rusty and the sand blaster makes a hole that's already there show up. if you're going to high heat paint it , Its going to burn off. if you mean some type of high heat ceramic coating. sandblastings fine, but its expensive. really nothings going to hurt it. I find that most of the time its fatigue make cracks or the bellows crack from flexing, less then rust on a downpipe. I use high heat paint on new exhaust pipes and it helps a lot as long as it doesn't burn off. like on the converter back, but down pipes I weld sometimes after ther crack out, but It usually only gets me through a winter usually.
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