Around $40k is what I've been hearing too so far. It shouldn't be much more than the '04 SVT Cobra's. I got some time to do some saving. My dad is going to give me about half the money for graduating college and the other half/insurance I will have to gather up some how. I have a bad feeling that I may have to put a few of my toys on the chopping block, most likly the boat first or at least maybe I'll trade it in for a jet ski and get about $10,000 for my pocket. I don't care how I do it but come fall '06 and there will be a new baby in the garage.

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My Garage....
1983 Mercedes 240D 4-Speed Manual Near Mint
1988 Mercedes 260E
1999 Chevrolet Tahoe LT
2001 Chrysler Sebring Lxi
1997 Bayliner Trophy 150HP Mercury Offshore OB

Just hope that dealers don't mark up the price for their "market adjustment".

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1990 190e 2.6 - The only one I can really call "My Car".

1987 190e 2.3 - The donor car's up and running, only mods are Euros and a Sony headunit. My Dad's runabout now.

1990 300e 2.6 - The parents' ride.

This gentleman seems to have mounted a supercharger to his 190E 2.6 which is I believe the same engine that you have. In the thread he said that he is willing to offer details to people and said he did it for around $400 so that looks like a pretty good option. Knowing someone who has done it before is quite a help. If you run low boost of say around 3-4 psi you could probably get away with the stock system with a little extra fuel during peak boost periods. If you know how or know someone that can weld/shape brackets etc I would go for it.
190e m103 supercharger almost complete

Muffler's, intakes, chips etc. gobble up cash quick and don't provide much improvement on older MBs. However, the newer supercharged/turbocharged systems respond very well to chips.

Good luck!