MAC Pro Chamber and Tuning

[Reign696]

Quick Question:
I have a 2006 Mustang GT with the AirRaid CAI with Diablo 93 Octane Tune and Bassani Axle Back Mufflers. If I install a MAC Pro-Chamber Mid-Pipe, will I need to re-tune my GT?

Thanks in Advance,

 

[Towelly]

Catted or Offroad?

 

[Reign696]

Catted or Offroad?

Catted. I actually went to a local Racing Shop around here, and got the answers. He told me that I don't necessary have to re-tune my GT, but I need to perform some Fuel-Trending to make sure that my car is compensating for the additional flow! Thanks!