i just got my obx catback installed and the warpspeed y pipe and all i gotta say is WOW!! this thing growls this combo is great, in a previous thread i read that once we get the y pipe installed we have to let it set in for three days is this true?

 

No, it's not a moving part so why would you let it SET in? The sound of it will change in a week or so. You like how it sounds meaning that you probably haven't heard it from the outside. It doesn't sound like a civic or anything but it's still kinda annoying when driving between 3krpm-WOT.

 

I agree with Big D. It's a bit drowning at times.