The tune does help but I can understand why HiComp might not wanna waste the money right now and in time I am sure he will do it.
The car was lean down low but not dangerous, then got rich in the middle before going alittle lean up top just before 6000..Again not dangerous, I ended up with alittle more timing in the lowend for some extra throttle repsonse and we tweeked the A/F a smidge at the top, leaned it out some in the middle..
The VVT stuff is trick and after looking at the software I am keeping it and will go to a VVT specific cam which with tuning I believe can be manipulated for alittle extra power.
Bottom line these headers are artwork, fit perfectly and make power..
The only drawback is no cats (WHICH I COULD ADD LATER) and we dont know if the Chinese SS will last.....Time will tell...
JMHO
