FMF makes a good pipe for the money.  A better pipe than that is probably going to cost you more than a tight budget.  Dollar's are known to be very expensive, parts wise.  It's probably 2 or 3 times more than you are used to paying for the Banshee you traded off.  But a hand coned and hammered pipe that is dyno tested will be leap years better than the FMF.  I know it's expensive, but you WILL get what you pay for & you will tell a difference.  I'm just like you, I've bought all the cheap parts for my qr and now all that's left is the expensive parts...I.e.swinger, axle, carrier, ext. A Arms, & shocks all around.  It sucks but now it's time to save up for the pricey parts.  Maybe someone could chime in and offer more info, to guide him a little bit.