Do i need a new tune for a lower pulley?

[707RIDAH]

I have an 04 Cobra with 2.76 pulley, intake exhaust etc. it has already been tuned for these mods but I want to install a lower pulley. I was wondering if I need to get a new tune if I do it? also, what size lower pulley should I run? i know this is probably a dumb question but I'm sure you guys can help me out:beer:

 

[jdgt03]

It would be a good idea, anytime u change boost levels u need to check air/fuel. And it will optimize the power u get from your boltons.

 

[unforgiven]

Yes, you will need a tune. How much psi are you running now?

 

[untitledreality]

It is a dumb question.

You will need a new tune and might have to get a MAF extender or a larger MAF, new Pumps or a BAP and quite possibly even injectors (maybe, maybe not)

 

[cobracide]

Typically you get a port before you start with the lower. 2.9x/4#

 

[TERMIN8TR]

absolutely yes

 

[mrose75]

Yeah, a port would really help with the lower on there. And as stated, definitely do a new tune.

 

[707RIDAH]

Thanks for the info, I knew you guys would be able to help me out lol!:beer:

 

[707RIDAH]

It is a dumb question.

You will need a new tune and might have to get a MAF extender or a larger MAF, new Pumps or a BAP and quite possibly even injectors (maybe, maybe not)

Actually i already have a Bap, 60lb injectors and a bigger MaF on the car right now. i was gonna run a dry shot of nitrous (also installed) but decided against it. eventually, i will just do a whipple cause i already have all the supporting mods