ive had a cpl matt. in fact only as of late have i had a electric one. now ive had erm 3 :S buggers lol.
ucan tell as it has pipes from exhaust manifold coming belt side back to the carb area.
again the otherside in reverse. will have a big carbon canistor in the back right. will have boost sensor on the back panel and has seliniod instead of standard coil behind the battery. easiest thing to look out for