TRANNY SWAP HELP!!!

[kylenjdm]

I have a 98-99 bmw 323is coupe, it has the original engine, I have access to a 96 bmw m3 manual tranny, and all the works, now, my bmw is auto, i believe the 4 speed, but i am not sure, ARE the trannys interchangeable with my block? THANKS everybody!

[VMZ]

By the looks of the dates you have a m52 engine and the M was a s52 so it should bolt up nicely.

[kylenjdm]

thanks, hey im new to the whole bmw modding thing, ive been into hondas and mitsu's im not the biggest fan of mitsu's they are crap. are there any good websites i can go to for bmw specailty parts and turbo kits? intake manifolds? and i am in usa if that helps,

thanks VMZ

[VMZ]

If you're looking for a turbo kit I'd suggest AA as your first port of call but it'll cost you a bit.
http://www.activeautowerke.com/turbo-sy ... &submenu=7

Performance parts have a look at Turner. Theres lots of places that sell E36 stuff but not having bought from them I cant tell you too much. Have a Google.
http://www.turnermotorsport.com/

Intake manifolds. If you have an OBD2 car(From memory '96+) You can swap back to an OBD1 manifold which has bigger intake runners. Fairly easy swap but you trade your low end torque for higher peak power... I personally think that even with a 2.8 I'm lacking torque so I wouldn't wanna give it up but obviously others feel otherwise. I don't think there's much need looking for an after market one or custom until you get some other parts into your engine.

BMW did a very nice job from the factory. Following the 3" rule and putting a 3" intake(necked back down to fit the standard throttle body) and a free flowing 3" exhaust don't gain you that much other than more intake and exhaust noise.