Not sure if this is the right place on this forum for this but…..2017 Q60 RS AWD. Just purchased catless lower downpipes and need a good shop for the install. I’m tuned by rt tuning, who are awesome, but they want a hefty price to install and I’d like to see what other shops cost. Just outside of north east Philly and don’t mind traveling a little bit if anyone has any shops to recommend