fresh motor need help

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Mechanical Help

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So I just got a full rebuild on my 2017 sti (new longblock, shortblock, cams, heads, turbo) and I was wondering if i could do a catless downpipe on my break in period. I’m already intake,exhaust, and tune (won’t run tune on break in period) but I was wondering if I could install a catless downpipe on top of those and then get a break in tune from migtuned. I don’t want to blow it up again and will take my break in period serious. But to finalize my question is it okay to add a catless downpipe with a break in tune and how long should i break it in for. Thank you!

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2017wrxsti

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Posted: 10 months ago
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