Hey Mate,

I just installed an x-force system on my 02 STi and apparently the STi already has a catless up pipe...I have had no dramas as of yet. The system has been on the car for about 3 weeks.

However, I am going to get a retune done in the not too distant future to get some better low down torque and a little more power. I do get a minor boost spike to about 1.3/4 bar, then it settles back down to 1.1/2.

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