i have the EXACT same question.. ive buy on ebay an ek9 steering to put on my 00 civic SIR and from what ive seen i think the airbag inflator on my stock SIR steering looks the same. The only problem is that the nuts that are holding it are 3 side ??!!! never seen that before and its completly not removable whitout the right tool.. i guess its just noob-proof but if i find someone who can remove the stock inflator ill tell you if it works on the ek9 momo steering !