2000 TJ Hyper Tech????

I have a 2000 TJ 4.0 with bored TB and Flowmaster exhaust. Has anybody used the Hyper-Tech Product on there Jeep?

What header works for my jeep? (I have 4 O2 sensor's mounted on my 4.0) 2 mounted on the exhaust manifold and 2 down-steam of the collector's.

Thanks