chip express ?? are they any good ??

Hi all
I"m researching a power chip for the zd30 and have found a product called chip express, the figures look great the price is good ( $650.00 ) but can anyone tell me are they any good ?
Does this chip just increase fuel pressure like most or does it alter the engine timing which I understand is a better way to go.
I like the steinbauer power chip but at $1500.00 I dont think I could bring myself to spend that much.
any thoughts or information is greatly appreciated.

car is 02 zd30 auto with 3in exhaust blocked egr and dawes n needle valve and aftermarket intercooler.

I tried one and the power was great, but the power was from over fueling and my mods were not suited to the over fueling and the EGT's were to high. Now have the Chipit chip and I'm very happy.


Sent from my iPhone. Please excuse the spelling.

hey i've been doing alot of research, if you haven't already read my post http://www.nissanpatrol.com.au/forum...l-chip-is-best feel free to. My car will go in on wednesday to have one of these chips fitted and i'll let you know how it goes :)

Thanks arwon and patrol2011 I look forward to hearing how the new chip goes