Thanks for the info and posts
Its not often I post but I would like to thank each of you for your informative comments. I have followed with great interest the mods that have been fitted and results that have been achieved.
This afternoon I am having the last of these mods fitted and wait with great anticipation. I achieved 219.3RWK’s on BTP dyno in shootout with Herrod full exhaust, SS 80mm throttle body,BTP helix, SS cold induction and K&N filter.
I am having the underdrives fitted to the XR8 Ute. From what I gather I should be gaining 10kws with a better rev response.
Once again thanks as I wouldn’t have been able to do these mods and have the ear to ear grin if others hadn’t had taken the time to post results.