Hi all, I am looking for people with either experience on this or a similar setup, or tuners/mechanics please.

I currently have this setup:
VF43, Sti pinks, walbro fp, boost control solenoid, eBay tmic, aluminum radiator, catted dp, up, borla hush cbe, tune on my 05 2.0l. Had this setup for about 3 years now and it's been great but I'm ready for some quiet.

Question is, what would REALLY be happening if I put a stock cbe on this setup without retuning to get some quiet commuting? I commute about 80 miles/day and it would be nice to not have the rumble, as great as it is, for a while. I do get on the throttle getting on the freeway occasionally, or to quiet the occasional ricer.

 

Your CBE shouldn't make much of a difference, but..... If I recall correctly the STi catback does flow better so maybe get your tune but have your quiet one an STi one.

 

Thanks Heedz, I already have a street tune on this setup which I am using now. I'm mainly curious, I guess, about if this will effect what is going on inside of the engine adversely.