Conversation Between uschoice and Andrew@GIAC

Hi Austin,
If I swap my 2.5" Speedtech with cats for a 3" BBI with or without cats, will that affect my tune?
Thanks,
David

Good to hear it's improved! There is a fine line to walk between responsive and twitchy. With DBW, we tend to shy away from being twitcy, especially on the twin turbos.

Hi Austin,
I spoke to you at the GMG open house on 4/13 about my car that you tuned last April. The throttle was experiencing hesitation when I blipped it during down shifts, and you suggested switching out the Fabspeed air filter housing for a stock box.
Well, I switched it out and the problem has been reduced by a good margin. Still not an instantaneous response, but improved none the less (perhaps try one of those signal amplifiers on the pedal?). Thanks for the tip. It was great talking to you.
David