Tune again when adding pulley?
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Registered User
iTrader: (41)
Joined: Feb 2006
Posts: 1,021
From: Central Valley,CA
Car Info: Challenger R/T
Tune again when adding pulley?
I'm currently running a stage 2 and I want to add a Perrin Pulley, would I need to tune it again? Is there any noticeable difference in power? thanks guys
Registered User
Joined: Feb 2007
Posts: 2
From: Socal
Car Info: WRX_vf39'd
there are specific modifications you can do to your car without tuning while you are on the Cobb AP assuming that is what you are using:
crank pulley (what you have)
walbro fuel pump
one step colder spark plugs
spt intake/cobb intake (maybe)
with my perrin pulley i noticed a quicker throttle response and it is supposed to gain some power.
crank pulley (what you have)
walbro fuel pump
one step colder spark plugs
spt intake/cobb intake (maybe)
with my perrin pulley i noticed a quicker throttle response and it is supposed to gain some power.
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