So this week decided to take off the Hi-Flow cats and replace with catless connection pipes - it's added a little bit of noise but nothing too bad - and more importantly I took it to the track last night and it definitely feels stronger, although that could of course just be due to the cool weather here at the moment.
Mph used to be 124 though and last night I was hitting 127 - although still need to order some drag radials to get decent times!
Did get this photo in the staging lanes which I like though - guy was running low 10's on the bike version of my car haha...