Hey, how many of you have the Mindtrain Race header setup with the 4 presilencers? What does it sound like? Anybody have this setup on with the stock catback? How much do you think the presilencers restrict airflow and HP. 4 presilencers sounds like it'd be pretty restrictive. Anybody have any experience with the RB setup AND the mindtrain setup? Are they comparable HP numbers wise? Does anybody have pics of this setup?