HOW MUCH YOU NEED TO EXPECT YOU'LL PAY FOR A GOOD GT63S

Need to have some information…I got a golf five gti fsi 07 I’m installing a downpipe this weekend even so I was encouraged that the EPC mild may well come on really should I be anxious?I have a civic rs turbo 2018 model what woul benefit my vehicle if I set up it with PRL downpipe and front pipeCad77 – Probably a little something from rpm-mot