I'm pretty sure the wiring harness on the right is only for feul/air ratio-ing (make sense?). And i'm pretty sure you need it to keep the engine running properly...but why would you try with out it?
jw, do you have the right computer for it?
But, why would you put a 525 engine in a 325es? why not just get a 535i...
I'm assuming you put in a 2.5L i engine if youre in the US (cause the didnt have 525e here, it was 528e)...i would love to have 182hp and then chip it and and and and....omg, that sounds fun!
"Bmw is better than Volvo, Robert"
Retired ride: 1990 325i - Manual - Chipped - Recaro Racing Seats - Eibach Lowering Springs - Original German Liscense plate (for style) - Black HID Halo Angel Eyes - Blacked out Turn signals - alpina rims. :-)