pacesetters and tsp y
the combination seems great

TTP had some issues with pacesetters, but Matt seems to have tackled the job quite nicely
There's absolutely no banging from the ypipe, and i havent noticed any loss of ground clearance. Granted, i go very slowly and sideways across speedbumps, but I was doing that before this install as well..Sounds great even with the stock catback.
Can't comment on the Borla, since I'm getting the TSP Rumbler ..
Perhaps somebody else can chime in.

