I have a 2008 ss tc it has injen cai injen hot side charge pipe mpx downpipe and catback mpx exhaust. and is also trifecta tuned. I purchased the plug and play 3 bar map and t map sensors. when I installed them my turbo has flutter and will not make any boost at all. why is this happening?

 

Do you need a re-flash once you install the 3 bar MAP sensor? I thought I read on ZZP's website that you do

 

You need a re-tune.

 

you need a retune when you install 3bar map sensors