Ok I want some info on if I swap from a 05 MR VIII Turbo to a Evo IX turbo do I need to retune or will I be fine. I am running 24psi on the VIII on 93 only.

my mods

3" o2 houseing
3" TBE
MBC
Comp 272/272
Walboro 255
AEM Intake
ARP Head Studs
FORGE RS BOV
and I do have a AEM Wide Band
Tuned by Ptuneing on the VIII

 

ur gona need a retune and the evo 8 to evo 9 turbo swap package

 

Yeah I knew about the FP Gen 2 kit because I plan on a red. But thanks for the help

 

ditto

 

2 get all the potential of the new Turbo definitely get a new tune

 

I will more then likely just wait to install until I upgrade it to a red to save the 500.00 for other needed parts ie...injectors, cam gears and belt, either ported and coated stock mani or tubi and then tune.

 

if you want to see any gains then yeah

 

This.

You won't have to retune, might be good idea to turn down the boost a pound or so but retune would get more power.

 

retune and take advantage of the larger turbo