Anyone have a link to comprehensive reviews of the different intakes? Specifically, the HP and TQ gains/losses? My air filters need replaced, and I'm on the fence about R2C vs. JW vs. Takeda vs. Stillen, etc....vs. just a replacement panel filter.

 

search is your friend https://g35driver.com/forums/intake-...s-results.html

 

^thanks. Anything for our motor though? Or, are the results basically the same?

 

basically the same.. they just have 1 intake, and we have 2(and we have to basically buy 2 intakes, thus the heft price tag), so our cars are already ahead on that game, the gains they get out of intakes and spacers is to even the flow out to all cylinders, to counter lack of dual intakes...so I think gains on intake would be even less on our cars!

The uprev folks still say that with supporting mods(free flow exhaust of some kind), they have seen gains with the stillen gen3. The gains are so low otherwise, just daily environmental variables from one day on the dyno to the next could make it look like it gained a few hp. Also we all know not to trust manufacturer hp promises

 

Every Stillen gen3 dyno that has been posted seem to get 10+ HP at the top of the rpm range. At least it doesn't lose hp, if you are doing it for just the sound.

 

My Stillen Gen 2s are for sale if anyone is interested, BTW. Just a plug. PM me if interested.

 

For those skeptics on this thread who don't believe a better intake and exhaust can improve rwrhp and torque I've included a dyno graph of my car before and after.

 

Ok, call me a skeptic, but to be quite frank, you're kind of all over the map here.

Let's summarize . . .
You originally posted that your intake gave you 8 hp and 4 ft.lbs tq. in the 5-7k rpm range. Then, over two years later, you make a post stating that the exhaust ALONE can add 10-15 whp. When I questioned you on it, you didn't back it up, instead offering a (distracting) dyno of a turbo setup. Now today, you post a dyno supposedly showing the results of your car with BOTH intake AND exhaust. Yet even with that, the plot only shows a gain of 12.35hp and 9.56 ft.lbs.tq., with the bulk of that happening in the 5-7k rpm range.

So essentially, you are contradicting yourself here somewhere. If the gains from the intake alone accounted for 8hp and 4 ft.lbs tq. in the 5-7k range as you originally stated, then that means the exhaust ALONE accounted for something more like 4 hp and 5.5 ft.lbs tq., NOT THE 10-15 whp which you had claimed and which I had (skeptically) questioned.

I'm not trying to beat up on you here, it's just that people look to this info for real world experience for guidance on how best to spend their hard earned dollars. The least we can do is offer the most accurate information possible.

 

Yes, you are correct. I should've been more clear. The combination of intake AND exhaust improved rwhp in the 10-15 range as well torque. Thanks for pointing that out to everyone.

A 12hp, 9 ft/lb gain is pretty impressive for the combination. And yes most is its going to happen in the 5-7 rpm which it should. the HR engine generates most of its power in this band.


Have you actually improved your car with these or any other mods? Do you have data to share on why you've done that may benefit others? Or are you just here to criticize other people posts.


It have since moved forward from these modifications and my car is now a Twin Turbo setup. So digging up this this old information took some time. Hence the delay in posted the dyno results.

 

Anyone with half a brain is going to "criticize" and analyze your post, especially when you spout off questionable numbers and contradict yourself with data that goes against the norm. BTW, VQ is legit and all he asked for was clarification on your numbers.

Don't take it personal, it's the internet.

 

Certainly not, and would be unfortunate if you interpreted my posts that way. The simple fact is that you made a recommendation to people here and noted performance claims which seemed implausible (as you've now acknowledged yourself). Again, I was never trying to beat up on you or criticize you, and I don't believe I have. Instead, I merely sought the most correct information available. I am sorry if that has offended you.

 

in any case, the information in this post has been useful to me. thanks Svnrmk, vqsmile, et al.

I'm considering the Gen2 for my '08 G35x and would love to see more dyno data personally.