I gained .3-.4 seconds and 3-4mph with only the addition of a JWT ECU to my I/Y/E/MEVI car. Everything else was comparable (track conditions, weather conditions, my skill level, etc). JWT is a good gain by itself, and an incredible gain if you have VI and can use the extra revs.

My peak numbers were pretty much unchanged. Can you guess how much I care about my peak dyno numbers?

 

My n/a tuned jwt ecu was the best mod for the money I have ever spent on my maxima.

Also don't forget that after to spend 300-400 for a eu in most cases you still have to get a inj and ing harness, wb, support software, serial cable, laptop, hard wire it in and THEN tune it.

 

Right. Ive seen VI's make 60HP WITHOUT the extended rev limiter. Add a few more revs and .