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Old 03-27-2005, 08:51 PM   #1
STi Guy 69er
Scooby Newbie
Member#: 82648
Join Date: Mar 2005
Chapter/Region: W. Canada
Location: Medicine Hat
2005 Impreza 2.5 RS

Default 2005 RS Bored Out Throttlebody

Ok i posted this once in the section it shoulda been posted in but no one is answering so ill post here and hope for someone to reply. i was wondering if it will hurt to bore out the throttle body. how much is acceptable. Will doin this cause a CEL to come on? and will i get a better pedal response because of this?
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Old 03-28-2005, 12:00 PM   #2
Scooby Guru
Member#: 32792
Join Date: Feb 2003
Chapter/Region: NESIC
Location: lincoln, ri
2003 GGA MBP
12.9 / 105+


with a larger TB, your pedal response will be more digital--ie, on/off.

if done right, you will not cause a cel.

how much do you think it is a restriction? that should guide your choice as to how much to increase size.
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