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Old 02-27-2015, 04:02 PM   #4515 (permalink)
FPenvy
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Quote:
Originally Posted by Bully View Post
My guess is that the cans are stainless steel wrapped with the composite material which makes the thermal expansion part interesting. I'm sure they cycle tested these things. Easy test would be to just pick them up. If they were just hollow skins, I'm sure they would advertise the weight difference to help justify the $300 difference.
actually im pretty positive its just a CF shell capped by SS butt plates.

tony, correct me if i'm wrong please.
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324whp/258wtq AAM Tuned |F.I. NonRes CF CBE/NonRes TestPipes #373|UpRev Tuner|Akuma Motorsports Intakes|Z1 34 Row Oil Cooler
Quote:
Originally Posted by F.I. Inc. View Post
Yes, they are Tony approved! Frank, when I get around to it, I may put your pipes into production. We will call them, "The FP" option.
-Tony
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