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DJCarbine · 11-03-2013, 12:32 PM

So loose is a no go, however I tightened it until only 7 threads were showing on top and the whistle is gone

No more whistle at 2.5k rpm, in fact I don't hear any whistle at all unless its a redline shift, and it only lasts for a second

11-03-2013, 12:32 PM	#151
DJCarbine Thupercharged Join Date: Mar 2013 Drives: 2013 FR-S Location: La Grange Park, IL. Posts: 1,501 Thanks: 116 Thanked 751 Times in 439 Posts Mentioned: 23 Post(s)	So loose is a no go, however I tightened it until only 7 threads were showing on top and the whistle is gone No more whistle at 2.5k rpm, in fact I don't hear any whistle at all unless its a redline shift, and it only lasts for a second __________________ 2013 FRS Vortech V3 11psi Revworks UEL - PLM Overpipe - MOTIV catted frontpipe - Invidia Q300 2019 Series.Grey STI - Stage1+ SF