I was in my friends car and he has just an aem intake. We took the car up to 150 and then stopped. Whats the top speed of this car, im guessing like 155?

 

roughly ~157 with the top up, bone stock, naturally aspirated.

 

Done 145 and could have kept going.

 

In 2004 - my 2004 White/Tan Stock S2000 - redlined on I-85 one night in South Carolina with radar detector on - indicated 152, which is spot on with the RPMs.
Top up, windows closed, no A/C on. Earlier models with 9000 RPM redline could go faster. Getting to 152 took FOREVER after the 5-6 shift. Scary fast.

 

Since the question did not include a "where"..my top speed after turn 7 @ Road Atlanta and just before brakes near turn 10A, was 132. Supercharged with 310 to ground.

 

Sorry, I just saw the "stock" part of this thread...please ignore

 

Around 155, drag limited.