from what i hear and have seen an untuned intake MAY make a few PEAK hp but looses in many places as the readings spike sharply up and down. Meaning you may at one point in a .20 RPM range have 5-10 more hp but in other, more important places LOOSE HP. What many dynos sheets that show an increase don't show is how many runs it took to shake out one that actually made power. Yet another risk is the increase in EGT i have been informed about. Even with a reflash i have been told that hight exhaust gas temps are to be mindful of. My thoughts are that the stock box (with perhaps a higher flowing filter) is sufficient for the stock turbo. If you find that the stock airbox is the only bottleneck you have in your cold-side piping then you are running a killer turbo or boost that makes your rods weep.

If you are adding the intake for the "cold air" effect then check out the scoop on the stock airbox, perhaps diverting more air to the scoop would be more prudent. If you are adding the intake for flow then perhaps just upgrading the piping inline (cusco, ralliart) would be better and less noticable for those trying to keep a stock-like appearance. However, if you just like the neat-o sound then do whatever you want, put a kazoo in the intake tract if you want since it will probably have more effect then anything you add for a performance "sound" *cough* VTA BOV *cough*

Out.

 

I have read much too though that says some maf pipes do the same thing. Which would be good to get that wont mess up the reading with stock box?

 

I have the HKS for over a year now, so.............

GO 4 IT...............

 

i say in the box of hks intake that they actually have a graph on how much hp u gain and it looks like u gain a good 10 to 15 hp but i think that can only achieved with tune. i installed my hks intake last night and test drove it., it felt like i gained more hp on it but i just hope that i wont mess up the other things that these guys say

 

Yes, I am BLIND to the evos performance building! That's why I went 12.2 after spending $825 on mods and am now hitting 12.0s with the addition of a test pipe and downpipe. Wow, maybe I'd go 11.8s if I had a super special intake that spools up less than 1rpm earlier (.500??). Throttle response twice as good? You can't be serious...how the hell do you measure throttle response being twice as good?

The only clueless smacktalker here is YOU.

 

check this thread. https://www.evolutionm.net/forums/sh...8&page=1&pp=15

from my observations during the day i cannot tell the difference. but when i go down to the beach at round midnight. the car DEFINATELY has alot more kick. probablly due to the temp of air going into the intake. i donot have a box to seperate the engine bay heat. but at night is not a problem. My theory is that if you can get the outside air directed ontop of the intake and keep it seperated from the engine bay that you will always have better performance. but im not a professional.