dirty air filter?

 

clean...

imma go try my 0-60

 

try resetting the ecu

 

yea ive been driving a bit slow lately to get more mpg out of it. could it be that the ecu readjusted to my driving habbit? and if it did, would it make that much of a difference?

 

0-60 is a useless measurement.

 

whats a good measurement

 

take it to a good mechanic who knows s2000's and do a full service and diagnostic check up...or read the DIY Faq section which has some helpful tips.

 

I totally agree with you. If your car feels slower than usual take it to a mechanic or dealer where you bought it to have it checked. It's still safe to have an expert check on it...

 

I think a good general question to ask yourself is:

Does it feel like this just happened all of a sudden? Or does it feel like it was very gradual over a longer period of time?

I've had the feeling of gradual performance degradation, gotten all nervous, and had everything checked out, only to find that everything was perfect, I was just getting used to the car's performance level. I hate that happens, but it does

That's why you add things like bolt-ons / tuning / boost!

 

1/4 mile IMO