well yes, technically you could, but the people who made these chips, they are experts, and they specialize in this so their chip is probably going to yield more performance, and do you have a programmer? arent they a little costly?
Originally Posted by c1apton
I keep forgetting that - I have a great memory but it doesn't last long
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I know of three different chip makers, there are probably more. There is Conforti, there is Dinan, there is active autowerks. Conforti seems to be better all-around. Dinan seems to do better at high rpm's. AA I'm not sure about, but have heard good things. I believe they are all around the same price. Two things they all seem to do is: raise the red line to about 7000 rpms, and remove the top speed limiter. If you plan a lot of mods, I would buy a chip last. You can then tell them what you have done and they can custom tune the chip for you.
1995 325I, tinted windows, K&N, debaffled air box, BMW style #104 wheels, Nighthawk low beams, smoked side markers, smoked corners, smoked taillights, M3 style heated mirrors, various interior bits, Bosal cat-back
And also for tuning it yourself, lots of tuning is trial and error. Unless you have unlimited access to a dyno, it'd be very difficult to acquire the gains the Conforti (or whatever other brand) can offer.