Smaller Pulley but no Tune. Any Issues?
I came across an E55 AMG and I am planning to buy it. Current owner has installed an icebox in the trunk to cool the supercharger, performed a cat delete (check engine light on), and installed a smaller pulley. Everything else is stock. I wanted to know if the stock ecu can compensate for the smaller pulley without a tune and no problems. Is there anything I should ask/look out for? I plan to either tune the car or install the factory size pulley.
Thanks in advance.
But in general...
Compression test. Many owners drove the AMG's hard and too many followed that 10K mile oil change. I would also take it to an indy shop that claims they specialize in MB's - toss them a hundred bucks (or more) - so they can pull the codes using a Star so you have some hard facts. Now if the cost is a non-issue to you and it is a toy to you and you want to play with it - enjoy! Depending on your state - that cat removal can be anywhere from a non-issue to a big giant hole in your wallet to fix.



