I have just recently cancled my check to MPH becasue its been a month, they havn't seen it and the check hasn't been cashed. So I was wondering if i should go ahead and use the 170 for a mid pipe again, or should i use it on something else? i can go up to about 200 MAX right now. i'm going to switch to full time durrning the summer though. should i buy the exhaust, save, or buy something else?