Hooligan,
First, why do you want to remove the SAI? There is no performance benefit by itself, it only stops the popping on decelleration. I did it to get rid of the popping (drove me crazy), better tune the bike, and to allow for me to get cooler air into the engine.
Your reasons can be just as good/bad, I just want to make sure you know that there is no performance gain by itself.
It should not hurt the stock cat, it only causes a dilution of gasses. It may cause the cat to run a bit warmer, but not a lot.
Some cars use SAI, and some do not - within the same model line, using the same cats and exactly the same engine.
First, why do you want to remove the SAI? There is no performance benefit by itself, it only stops the popping on decelleration. I did it to get rid of the popping (drove me crazy), better tune the bike, and to allow for me to get cooler air into the engine.
Your reasons can be just as good/bad, I just want to make sure you know that there is no performance gain by itself.
It should not hurt the stock cat, it only causes a dilution of gasses. It may cause the cat to run a bit warmer, but not a lot.
Some cars use SAI, and some do not - within the same model line, using the same cats and exactly the same engine.