what size is the stock throttle body on my 98 civic? also how many of you are running a larger TB and which ones do you prefer?

 

is nobody on a upgraded TB?

 

U got it man, FI guys don't need to port and cut and bore and hack their aluminum like NA guys do cuz our turbos help out with that volumetric efficiency i'm joking but there are a few guys here that have bored out stock TBs and a few with aftermarket ones like Holley etc but them things cost big cheese $upwards of 300 bucks for a small HP increase.
As for stock size I have no idea what it is. peace

 

I have a 70mm TB off of a 2000 mustang GT....bought it for 50 bucks. Just gotta test eh TPS and see if it'll work with hondas

THe older one's work with hondas, but are not 70mm

 

i have heard that an infiniti q45 tb bolts right up but i cant confirm it...maybe someone should look into it. BTW its 74mm if i remember correctly hth

 

good info, thanks guys!