All I would need would be is a testpipe to make it a TBE if I am not mistaken.
TBE = downpipe, test pipe/high flow cat, and cat back. Yes you can add seperate parts later.
It really helps alot but I was always curious if I could have a spike in boost. Could the increased airflow increase the boost? Is that why it pulls so hard?
Yes it can. What does your boost gauge say?
Yea, it seems like it pulls harder and my rpms rise faster.
i have a digital kpa boost gauge. The highest it has gone is about 1.3ish kpa. That should be close to 19psi since 1kpa is 14psi.