you dont need overpipe
hks uel have super small exit, smaller than stock
![Smile](images/smilies/smile.gif)
they don t say that but you will see from the flange on it
keept stock over pipe to "Match" diameters with frontpipe too
If you don t change front pipe, you ll get less rasp than me
but still loud probably because of spec L, louder than my Legamax, so yes should be deeper sounding your config