Hi. I'm getting St170 headers for my 1.8 blacktop.I'll decat the car as i have the opportunity but i don't know what is the best configuration for the "catback" two resonators or keep the middle silencer and dump the last one ...I really don't know what's the magic combination. As far as i know you guys here got lot of experience with this modification. I'm aware that the gains won't be tremendous but as far as it is my daily-driver I don't wanna go the turbo route or the SUPER MEGA GIGA N/A tuning. I'm after the pleasure effect of 150hp and the exhaust is my first step. So what's best for the catback? As a clue i can say that Davemurphy007's Focus 1.8 is the perfect one for me cheers Dave or whatever your name is man