Borla or Nismo? Neither of those have EVER been installed on an M from all of my scouring of NICO (name never came up in my searching at least). Most people get HKS, Megan (by far the most common - which is why I think I would have heard if it was trash), Stillen, Greddy etc. The only other OEM like name I’ve heard thrown around is some Fujitisubo Legalis R exhaust. I only have two requirements (not loud, but still nicely flowing, and similar tips to stock (4)). The Megan fits this perfectly…and at $300 for the muffler (see the edit below)…I don’t care if it doesn’t like 10 years. I’ll change it in 4-5 if I need to.
As for the tuning…no, Synapse isn’t tuning it. That was just mentioned. I’m smarter than letting someone who isn’t certified by UpRev do an UpRev tune :lol.
I will be paying $500 for the cable and software, will datalog myself, and then send it back to UpRev for them to build my tune. Then I’ll just flash it to the ECU myself. I trust them (as they are the ones who created the software :lol) and it’s cheaper this way (instead of driving who knows how many hours and paying $600+labor that most shops want). This $500 includes 3 future updates…my initial tune will include the spacer, lower plenum, and z tube. I will eventually add the exhaust and have them do an updated tune. And that’ll be that.
EDIT: I was just informed that I don’t need the mid-pipe as it’s only for HP gains. Most of the restriction in the M exhaust is in the mufflers…so that’s all I’ll be doing as I couldn’t care less for HP really. If it’s a byproduct of a mod I install to open it up, then fine (like the plenum), but otherwise I’d be fine with the stock HP.
Either way, the exhaust isn’t happening until my OEM one falls apart. So…it may be a while still.
I didn’t know luxury cars were excluded from simple mods that help ‘open them up’ such as exhausts and certain types of intakes. :facepalm
Drop is in the works too. BC Coilovers.