Can I improve my 320si???

Yes you can by the usual ways = ported head bigger valves performance cams HC pistons etc BUT if you want the best result for your money then install a turbo or supercharger and do it properly and research as much as possible OR you could install a larger motor with all the bits from a higher spec Beamer.
Whichever way you decide to go be prepared to spend big $$$$$$$$$$$$$

PS Have you thought about trading up to a higher performing BMW:)

FWIW I have the hots for an M3:love::love:
 
I have asked if I can install turbo and they answered me that I can't in this model...has something to do with valves

Who told you that??I have std valves from a non turbo Gallant in my turbo and zero valve problems for 15000k's .Are BMW valves of a lesser quality than my Mitsubishi ??:confused:
Nothing is impossible in the modification world you need to speak to the right people with the skills needed to accomplish what you wish for.

GOOGLE is your friend so use it http://www.pelicanparts.com/bmw/tec...arger/101-Projects-22-Supercharger.htmhttp://
THEN click on BMW then onto performance modifications on the left panel performance modifications forced induction.
 
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I have asked a mechanic from the bmw who is special on installing turbo on bmw and he said that in bmw e90 and after u haven't the opportunity to install a turbo... So if u know someone who can install a turbo on bmw e90 and after tell me
 
Sry I make a mistake ... In my car a cant install turbo because hasn't valvetronic instead of this has double Vanos.... That's why I can't
 
Okay, nice.

Best bet then is to get a decent custom stainless steel exhaust system, an enclosed induction kit or panel filter and then a remap. I reckon 200bhp is easily had here.
 
Induction kit or panel filter what u think is better... (Tell me if u can the difference )

Panel filter simply replaces the air filter element in your existing airbox.

An enclosed induction kit is a custom bit of kit which replaces your existing airbox and swaps it for an air filter which is enclosed resulting in a more direct flow and no restrictions.
 
I would go for a tubular exhaust manifold and a 2 & a 1/2" exhaust system.
The amount of noise the exhaust makes can be decided by yourself if you have the exhaust system custom made by a specialist.

Oh & no I don't know where you could buy this from as I don't live in your country.

You could try contacting your nearest BMW dealer for an M Sport options list and see what is already available for your car. A slightly cheaper option would be to Google some company's here in the UK and see what is available and more importantly if they will export.

Also, have a look here at a members project car,

http://www.torquecars.com/forums/f111/princes-bmw-e36-318is-coupe-18897/

he has a very nice 318is and has put many performance parts on his car. This project might serve as some inspiration for you own project. There are many suppliers that Prince has used and he recommends a few of them so contact them for further information.
 
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