Stock whp on AT roadster?
 

Got a 2010 auto touring roadster n put it on a dynojet after all the parts were put on and uprev tuned. Made 308 hp. Anybody know what the stock whp is? I figured they woulda ran her prior to get a baseline but didn't. I've heard anywhere from 258-290. That's a wide jump! Anybody actually done it n have solid numbers. Thank you all for future references!

I think 275-ish is about average for rwhp on a stock Z, coupe or roadster from what other form members are reporting.

mine was 260. Added just exhaust and it went to 288. hope that helps

Yea, 270-280 on a Dynojet AT Z.

What parts did you put on...?

Full CB MeisterSchaft Exahust

Full CBE GThaus, still gen3 intake, Stillen 25 row oil cooler, Uprev tuned