3 options for header (looking for advice)
 

I'm still debated on which header choose, so I'm looking for suggestion.


1) 17+model with gutted cat
2) UEL like JDL, Tomei or Gruppe-S
3) ACE A 350


Now, as prices will be quite different, which power/torque differences do I have to expect?

UEL is for low/mid range and EL is for top end! At the end of the day it comes down to what you want! I have TOMEI UEL and i am happy with it! Hope this helps!

Gruppe-S is probably the best bang for your money. The differences between all of them are minimal, maybe 5whp at most. Sure you may get some hero dyno numbers claiming one is much better than the other, but that's my 2 cents.

Tune in my opinion is more important.

El always beats uel!

With the A350 the opposite it true.

They both have a basically equal top end, but the A350 will beat any UEL's low end and midrange. The torque dip becomes a torque peak.

You'll spend an extra grand or so getting that long tube torque curve.

So worth it.

I have the Tomei UEL. In my opinion it's the cheapest way to kill the torque dip(with a tune of course) and gain a little bit of power. I don't know that the top end gains are much if at all, but if you're searching for that delicious linear torque curve, the Tomei/Gruppe-S UEL is an excellent option. You also get a little bit of that classic "dirty" Subaru rumble if you change your muffler.
The ACE A350 will make the most top-end AND mid-range. Justin from BTR Garage dyno'd his and it was quite impressive how much gains were had everywhere.

[ame]https://www.youtube.com/watch?v=ggQspB1P7a4&t=604s[/ame]


My 0.02.

198hp with gutted 17+ header, Ecutek Race Rom, Mishimoto intake tube (noise maker and every resonator delete), snorkel mod, OEM air filter, cheap 2.5" overpipe, cheap resonated cat back.

Most of the money spent was on the dyno tuning it, like a good boy/girl should.

Unless you are racing and competitive at the pointy end the extra cash outlay for shiny parts is just bragging rights and brand name fetish.

LOL, Dip, look at the RPM the dip is at, how the hell do people have issues with that?

My tuner said the only real option to flatten out the curve and get a gain up top was a ACE header (which one ICR but RHD), they make more everywhere, have proven well engineered design, he also said as it is a daily, it is not worth the outlay.

Pre tune 154hp
Post 198hp

But dyno numbers really mean nothing, it's the improvements of before and after.

25%? gains, for some cheap parts and some "hammer time", not bad IMO.

Gains everywhere.


Consumers will consume

Shop smart, shop Smart

That stock pull is kinda off, most likely low advance multiplier or strange K00C behaviour that tends to make less power when cat temp is below a pre-set thresholds
Not saying you don't gain from a gutted stock header and tune, but that gain is somehow exaggerate

Also, once you try headers that really bump up the dip, you will appreciate them even more and would never go back
Regardless if the dip doesn't bother you at this time

I'm in for ACE header if one can afford them, they make you feel like having really a more powerfull car and car pulls strong till redline

I read somewhere that gains with ACE are much lower if you use high octane fuel...

Cool story, I've showed you mine, you show me yours

Disclaimer: pre tune dyno was with all mods done, car runs 98 RON

Average dyno of stock car here in AU is around 110kwatw, or around 147 hpatw.

So....5kw or 6.7hp gain from all mods on OEM tune, give ot take 5hp

Tuned here > https://pulseracing.com.au/about-us/

Discuss....

Lol how many of these redundant threads can we have?

Sent from my SM-G965U using Tapatalk

I'll make another one just for you :cheers: