I need some suggestions about my exhaust problem. Yesterday I installed Pacesetter Long tubes and ORY.(I have a Corsa Sport Exhaust) Only to find that it is raspy around 3,000 Rpm and again at 5000 Rpm, below this it sounds fine at part throttle but wide open it shrieks . I'am kind of on the fence of putting the stock manifolds and y pipe back on , I really enjoyed the exhaust note prior to the long tubes. Let me know what you guys think.