HERE IS THE LINK FOR TME

Hi Nathan,

I am going through the same thing right now.

I can tell you that the I.P.D. chip is far superior.

The pes chip does not account for the transmission and other operations

and the car will think that it is having a failure some where

when you get the ipd chip you get two (hence the price difference)

but it is much better for your car.

read the info on the T.M.E. website

That is ipd in sweden

With IPD you pay a $1000 core charge that you get back when you

return yours. So, you could keep the OEM one if the market

does really well :)

I believe IPD's units are certified and legal (as far as pollution

laws are concerned).

I think with all the ECU tuners you'll have to send in your ECU unit for them to modify then they ship it back to you ASAP (so yes, you will be without a running car for those few days). Unsure about IPD though because they charge you a "core-charge" for the actual ECU unit first, then ask that you return them your stock ECU out of your car--check with them or someone who has actually dealt with them.

I had my ECU re-chipped by Wetterauer and the whole process took 3 days in total. It was simple and the car started without a hitch, no check engine light and I've had no engine-related problems thus far in 2 years of driving with the modified ECU. The car has also passed all annual smog checks thrown at it. The reason I chose Wetterauer was because after they modify your ECU, they return your original stock ECU program on a chip and it is actually re-usable.

And yes, you should get a freer-flowing cat-back exhaust when you get your ECU reprogrammed. But you don't have to get the expensive ready-to-bolt on ones that cost an arm and a leg. Just source a good free-flowing universal muffler that will fit your car and have a good muffler shop fabricate and install the rest--you even get to choose what type of exhaust pipe material if you go this way.

Hey guys- did not get a response over the week end on this one, so here goes again:

If and when the markets ever rebound and I have some extra "play" money I might want to add a little more fun to my 850 turbo.

As i understand it, with PES you send them your ECM and they modify it and mail it back to you (hence your out of a car for at least a few days).

With IPD , they send you a modified ECM and you mail back yours.

The IPD unit cost $980 and the PES modifid ECM about $600 something.

Anyone have pros and cons on either unit (other than price) ?

Is one superior to the other?

Any problem with the check engine light coming on?

Any problem passing emmissions testing?

Also, I realize the modified ECM should be used in conjunction with a performance cat back exhaust system.