My mods are : Cobb SF intake, Perrin catback, Invidia one piece testpipe+downpipe, Exedy stage 1 clutch with Act flywheel.
What I got in 4th gear are: 317.23 hp @ 6394 rpm
344.08 tq @ 3289 rpm

I use the map that Ap comes with: stage 2 SF ACN 91. I had chose a long straight flat road to test. What do you guys think? Does it look OK? My max hp happens in 6000 rpm, but I saw other people's happen between 3000 and 4000 rpm? Why my max hp happens so late? What should be my next mod in order to reach higher hp? (but reasonable price)
Sorry for many questions
Thanks for helping me out

You really dont get much hp from a bigger fmic,licp or uicp on stock turbo. It might help spool better. But to get more power will be either custom tune or going a bigger turbo since you already had the basic bolt ons.

I put down 318whp with full bolt ons minus cams n turbo. I hit max hp around 4500rpm. BTW

Your max HP is right, most of the time you will see it then or even later in the RPM range.

What should be my next mod in order to reach higher hp? (but reasonable price)


A custom tune would yield a noticable gain. From my experience, I installed a FMIC and had a retune, the car picked up +20 WHP. My modifications are similar to yours.

Where are you located?

A custom tune would yield a noticable gain. From my experience, I installed a FMIC and had a retune, the car picked up +20 WHP. My modifications are similar to yours.

Where are you located?

How much will the retune cost? I hope to retune my evo too, but I am located in Sacrameno Area. It is hard to find a tuner who tunes evo by using Acessport( there are two tuners in my area within 50 miles, but they both tune subaru.) Anyone knows tuners who are near my area tune Evo?

How much will the retune cost? I hope to retune my evo too, but I am located in Sacrameno Area. It is hard to find a tuner who tunes evo by using Acessport( there are two tuners in my area within 50 miles, but they both tune subaru.) Anyone knows tuners who are near my area tune Evo?

I had my car tuned at HB Speed. They do e-tunes. Send them a PM.

How much will the retune cost? I hope to retune my evo too, but I am located in Sacrameno Area. It is hard to find a tuner who tunes evo by using Acessport( there are two tuners in my area within 50 miles, but they both tune subaru.) Anyone knows tuners who are near my area tune Evo?

i too have a cobb ap - i dont know exactly what im pulling with the stuff i put in (short ram air intake, UICP, downpipe, race cat, invidia q300 exhaust). i use stage2 + AMS ACN since the AMS intake is the closes to mine (Agency Power). How did you get your power number?

GST in Hayward does Cobb tuning on Evos. I dont know how much they charge but i'm getting mine custom tuned when time and money permits.

Go to GST ask for Bryan he'll set you up.

i got 316whp on a mustang dyno with a stage 2 cobb, test pipe and catback. you may be able to pick up another 10-20hp with a custom tune. you should try out ap race tuner.

I've never admired the dyno feature the AP comes with. Not sure how accurate it is. I'd recommend just logging the parameters you need, then paste them into Virtual Dyno.