I'm going to go out on a limb here a little and say something about the SIR from all that I've heard and read, since I'm a BMW driver and this will effect me the most.
I know my dyno numbers at least last years numbers, and I've seen other and know of other BMW dyno numbers on both a mustang and dyno jet. IF and it is a big if , these SIR's are tested properly and are given to us are the right combination for the E36 325 BMW, with the HP as promised, I will have no problem with them at all! If installed properly with a well tuned inline 6 cyl., all I will say is there should be very good competition and the wins will be there if the BMW is driven well.
To all critics, please back off the ITAC & CBR, let them finish the tests they need, give them some time. If this S@#$ doesn't work, there's pleanty of time to HANG them later! (kidding of coarse)
[/b]