So who has the most highly modified CSL?

[Mike R]

Originally Posted by hoshy

Interesting thread.

Mike, did you consider putting the E90 V8 in? Sacrilege to many/most but I always thought that would be a nice way to up the power.

As I understand it the V8 is alloy block, so lighter, and a perhaps a bit shorter being a V (I'd like evidence of that if anybody has figure - don't want to spread bullshit )

to me that sounds like you'd be getting the comfortable road use, more power and potentially better handling. I'm sure there are aftermarket ways to get the induction noise back too.

I keep thinking about it on a regular basis, but keep discounting it on cost, complexity and noise reasons LOL. You have two choices - aftermarket ECU and dash system or transplanting the E9* item, complete with loom etc.

Because I already have a track car to this kind of level and because of how I want to use the CSL, I don't fancy the aftermarket route. However, the logistics of using OE stuff is a little daunting. Combined with the fact that I don't like DCT boxes (I had previously hankered after a GTR, but the driving experience and the noise it made changing gear left me cold, and so dissappointingly I knew it wasn't for me), which would leave using the manual box - but for me this moves away from what the CSL is about. Then we move on to the aforementioned "noise" issue:- we have an E90 M3 in the family, and although I like the noise it makes, I LOVE the sound of the straight six and the "buzz saw" induction of the CSL when the flap opens .

I'm still trying to find someone who can PROPERLY live map the OE ECU, as then I can explore the options I have in mind .