With just a z-tube/k&n, exhaust and 1/2'' spacer+iso thermal, would there be any benefit in havnig the ECU tuned do you think? I doubt you can increase the timing anymore, so I'm thikning there may be no point to.....

 

Sure the technosquare reflash will optimize your ECU parameters, but IMHO, these few mods won't make it necessary...except that the reflash will raise redline, and also raise the top speed capability.
Not worth the bother, since they'll need your ECU to reflash.

C.

 

I have the same mods plus Crawford cats and I think the ECU reflash makes sense there. What you have done is, you have increased the air in-flow and are probably running lean, so when you adjust the fuel amount it should result in more hp. But don't expect wonders, in N/A you will never have big increases. I expect to reach 300hp crank with the mods I have plus ECU, but I will be also tuning it to the 98 octan gas we have here.