In Reply to: performance software upgrade posted by kev on April 27, 2000 at 10:56:33:
Look down toward the bottom of the page for a post and replys on this very subject. Jim C. answered questions concerning what the difference was between the "stock" and the "with intake" versions of the performance software. Simply put, the difference is to eliminate the "check engine" light that might come on while using an aftermarket intake. The performance software is identical in the two versions of his software.
I don't know if you are able to buy the "with intake" performance software version without buying or having already bought his (Jim C.'s) particular intake. I'm clear on that.
For me, I have a lot of faith in Jim C.'s ability to tweak the ignition and fuel maps to safely add performance to BMW engines.
I would suggest trying to get the "with intake" version especially if you have the "check engine" light come on from time to time. If you can't get the version, then the "stock" version will make the exact same changes to your DME.
I really like the idea of the "Shark Injector". Nice idea.
: i am thinking of getting a software upgrade for my 97 m3. it is stock except for a k&n cone filter w/surrounding heat shield. i dont go to the track and would like more lower end power. any suggestions? i hear alot of positive feedback about jim c.'s software and was thinking of getting the injector but not sure which model to get as my intake seems pretty similar to the jim c. one. any advice is appreciated. thanks.