dx, si dizzy?

i bought this dizzy from this guy on ebay. he sent it out then said he wasent too sure it was a si dizzy he said if it wasent he would give me my money back. before i send it back to him is there anyway of tell the differences between a dx,si dizzy serial numbers different plugs ect..?

well the hf and si dizzy- look on the reluctor wheel in the dizzy, it will have a stamp saying pm6....not sure on the dx

ok thanks
dont need to know about the dx just wanna make sure its a si.

just got the dizzy. its not even off a 89-91 si.
its a 92-95 dizzy. this mother fucker is just plain stupid.

lol so the elec clips are grey instead of a dirty clear then......you know what he may not have sold you the wrong dizzy, it may be for a 92-95 si :P