hyperpm

I'll try to get it dyno'd this week and post results but it does feel stronger all throughout the powerband. I'll reset ECU this time. I aslo bought and installed new map sensor so results should be interesting this time.

4IGS2000

Hmm, it seems that exhaust is constipating your ride. I think you need to look into something more free flowing. Yellow Streak knows a lot about exhaust mods and constipation. You should PM him and ask for his say on what exhaust frees up the power on the S2k. I personally think a single setup is ideal, but you and i both know you will get pulled over in cali as soon as you hit the street! Its unfortunately that you lost power with every mod, pay me a visit and i will look into what can power up your s2k
seeya!

s2k_9000rpm

thats sad to hear that you actually lost power with both of those mods. maybe i need to get my s2k dyno'd soon. i have AEM cold air intake and Spugen Exhaust, i wonder if my numbers are any better or any worse than the ones you posted. as soon as i do i'll post the results.

hyperpm

Well with AEM CAI, I gained down low and midend which is what I wanted. Top end about the same and other conditions probably contributed to 1-2 hp loss at top.

evo s2000

hyprerpm. I'm sorry about you losing HP. The dyno was done on the same day? And did you give the car rest between every dyno? The HP lost due to exhaust was not to my suprise. This exhaust is really well made from the factory and there's only a few exhaust out there that has been truly dyno proofed to make power or that retains power. But the fact that you lost power with AEM CAI was really shocking.

ninegrand

Hmmmm, is everyone with the Spugen dual setup losing power?

I ordered mine for the look and sound, but I don't want to lose hp.

hyperpm

Most likely it's just my car, I installed new map sensor just in case so next dyno should tell me more.

evo s2000

It's maybe just him in this case. I have heard of good things from UL about the Spugen. Now I know they have diff. models. And maybe some make more HP than the others. But let's get another dyno run here and see what happends.

Spanky

Does it still produce that "Throaty" sound or did it smooth it out?

Asura

Hyper, where did you get the idea to use the stock mid-pipe resonator?

Are you still running the stock header? BTW, I am still looking for ways to make my car more quiet.