So i just replaced my spark plugs/wires, and cleaned my air filter today, before I take my vacation trip..and I took her out on the highway to see how it went and it was fantastic!! I hit 120 in 5th and still had enough snap it felt like i was still in 4th! it was great.. I did the full PI swap, plenum, TB, and otherstuff...but a long time ago..like 1 1/2 or 2 years ago I put in the steeda UDP..and since I think ive been noticing a small leak... I never really thought much of it because ive never had a performance issue, or any loss of oil, but im starting to think its coming from the crank pully? Ive been getting this wierd rattling sound at certain RPMS and ive changed the clutch flywheel TOB PB and built the tranny...and it seemed ok for a little while but now its all frigged up again.. Im starting to think the worst and wondering if it could havin something to do with the crank bearing..maybe even connecting rod bearings..main bearing.. question is..is there a way to tell if these are going? or a way to tell if it is in fact something to do with the crank shaft? or when those start to go do they just go and you find out suddenly..or is it something that you start to notice before its too late? im still going to check tomorow if its the exhaust, but if it could be a bearing I should check while im down there...thanks!