Originally Posted by tabetha

Not the first to have problem blamed on siemens.
I had a EA(stage3) chip/set up, recently 28/11/07 where it made 328.8bhp, 288.7lbft.
This was on a stage three, but it was using petrol like it was going out of fashion, and fouling plugs etc.
I was unhappy after a while despite an apparent 60odd bhp increase over stage 1, but then put it on another rollers, where the TRUE reading was very different and problems came to light.
The real power was 271.5BHP, 334.3lbft, a LOSS of 0.2BHP over a GGR stage 1 chip!!.
The torque curve plummets after 3500 due to MASSIVE ignition retard.
I used the same rollers for comparison purposes between a GGR stg1 and the EA chip.
The person I use does NOT do cossies as such, and knows neither of these people.
I regret the whole experience and would not wish it on anyone else, but it's your money and your choice.
The AFR on the GGR chip was between about 11.5 to 12.5, the EA chip was between 11 and 10.5..
tabetha