[feldy]

Have a few questions.

I'm in the process of upgrading the header with highflow cat and replacing the catback.

Also plan on replacing either the overpipe or the frontpipe with high flow cat in it. Keeping both cats ect to help with the overall noise.

I was told that if doing the header the front pipe is a must. But is the front pipe going to make that big of a difference if the highflo cat in on there? Or would the stock front pipe work better in that case and just upgrade the overpipe?