Cozar I had to order a bunch of random piping then cut it all up and mark where it needed to be welded and go get it welded. Along with check for fitment and make sure I didnt have the problem of couplers blowing off which it didnt. You could make that cobb piping kit fit but its going to take...
Cozar I run that same exact core but with a custom piping setup I made myself . Youre exactly right about knotching the crash bar out but you may have also trim around the fog light area as well.
Ive also been making 450+whp for a while now and daily drive my car 100 miles everyday with that kind of power. IMO reliability has 100% to do with maintenance and a tune.