Thread: Berks HFC with nismo- rasp/rattle extremely loud -
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Old 11-04-2014, 12:57 PM   #13 (permalink)
FPenvy
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Quote:
Originally Posted by nvdave04 View Post
I had the same type of rasp with the factory midpipe berks HFC and nismo muffler.. I thought going to 2.5 inch xpipe would give it more flow and help.. But just Made it worse of course.. I'm going to add resonators today to see if it helps.
mine is 2.5" the whole way except my tips are 4.5" but that doesnt really matter.

i've never ran HFCs so that may be your issuse as well but i know some friends who run them and havent heard anything that raspy so far. may be poor fitment or just the berk HFC. most peoples ive heard are FI HFC.
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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.
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