shops around me dont want to do anything thats aftermarket. its either oem or no go. they dont want to be responsible for failing emissions. etc. they will repair your oem exhaust but not so much build or do aftermarket.

my buddy has a pipe bender and both of us are decent welders. if i cant do it ill follow your lead and hit up a few shops you tried.
thanks for the info so far and lmk what else you find out!
goodluck!

 

The tips im using are from sebring tuning similair to the eisemann exhaust

 

Eisemann are expensive. What makes them better than Remus or RPI. OR say Turner! Id change or upgrade but really don't want to make the tip sound like a race car. I would change out the oem only if it was half the race car sound of a RPI ,EISEMANN, or Remus system. At this point I can live with the oem. Guess I need to personally hear the 550i I have with some of these. Course when the CPO is up too.

 

Does back pressure put any back pressure load on exhaust manifold or sensors up near the na62 moor?