I recently upgraded to Stage 2 using the Cobb OTS 93 octane map. I'm running the COBB catted DP, and an STI catless uppipe. I don't have any exhaust leaks.
I specifically put a cat on so that I wouldn't get the smell I used to get in my catless Mustang.
I've datalogged and I'm running the correct AFR's according to Cobb and other research I've done.
My question is, is this normal? Is there a DP with a better cat that works better? I'm thinking the Invidia or Perrin might be better b/c the cat is closer to the turbo, so it should heat up quicker, get hotter, and therefore work better.
Now, to me, the exhaust smells like victory
, but to my pregnant wife it smells gross and illegal. I'm also a little concerned I'm not being very environmentally friendly.
Also, will a custom tune help this smell? Would that be risky to run the car lean?
I guess that's a lot of questions. Any help would be appreciated.