Heres my little write up on the HKS Supermega Flow intake.
 

If you have gave this part bad reviews, its because you have not driven a car with it. I installed mine today and i noticed a HUGE difference in performance, i did loose a little lowend toqure but every bit i lost i gained at about 4,000rpm and it only doubles from there up. I was very suprized my automatic S5 would ever be fast but after i got all this installed i took it for a drive and some mustang tryed rubbing my bumper untill i kicked it. He held me untill i hit 60mph then i completely left him and i could tell he wasnt letting off cause at 110mph he was still there but not very close. lol, So ive had a good day and ied say the best band for your buck is the hks intake system.

ass dyno rules! :)

what?

Hey Mephis, where in Johnson County do you live? I live in Marion County, but right above the County Line Road/the border line (or as I've come to call it, the Mason-Dixie Line) and like two minutes west of I-65. I'd like to see your RX sometime, PM me back.

It's hard to judge the power of a car just by what your butt is telling you. It should pick up some power but will it really be that noticable or does it just feel cause you can hear it more.

i've heard/read from many people that these are worthless, they let too much dirt and grime in through the filter, ultimately killing your engine. i was told from a experienced builder of rotary engines that the motors he pulls apart that have this intake on them, have the most torn up internals with much more dirt and crap inside them compared to others.

no personal experience, but i dont think i would try it out.

you might want to check this out

http://www.mkiv.com/techarticles/filters_test/2/

Wow you spent $150+ for a filter on a stick...
You can build the same thing yourself for $50, and that includes $40 for a GOOD K&N filter.

If your kit uses one of those foam mushrums, you should take it off before the foam starts to fall apart and get sucked into the engine... plus they filter like shit, even when brand new... might as well just run a peice of mesh over the end- It will filter just as well as the foam POS and at least the mesh isn't going to come apart and be sucked into the engine.

im not too worried i dont drive in dirty areas.

Re: Heres my little write up on the HKS Supermega Flow intake.
 

I have owned an 88 TII with it, and while I would not call it bad, I wouldn't give it a great review, either. The kit is handy for those who don't want to build their own system, and IMO the HKS is the best looking intake for car shows and such, although it does get dirty pretty fast and you cannot clean the element without ruining its filtration capability. IMO the performance isn't any different than the other similar kits.

I disagree. For those with an S5 car, you can simply throw a K&N cone filter on the AFM, and throw a crankcase filter on the air pump hose if you elect to keep the air pump functional. For those with a S4 car, a $20 HKS adapter is needed for the cone filter. Total cost is well under $100, even with the S4 adapter and crankcase filter. The K&N filter is good for 10 years or 1,000,000 miles when periodically cleaned and oiled with the $10 K&N cleaner/oiler kit, while the HKS filter element needs replacement a little more often than the stock filter. Assuming you change the HKS filter every year (which you should), that's 9 additional HKS filters you will need to buy vs. the 10 year timespan of the K&N. The HKS filters sell for about $15 each for a total of $135 over the initial cost of the intake for a 10 year period. We won't go into the environmentalist whacko point of 10 HKS filters sitting on the top of the garbage heap vs. one K&N filter. ;)

I think it's wonderful that some teenagers tried testing out filters on their own with homemade test equipment, but I do not associate any validity with that test. SAE J726 defines the proper test procedure, and I don't remember a vacuum cleaner bag being part of that test, lol.

Two questions to ask:
1) Who are these guys?
2) What is their relationship to Apexi? Hmm.

Maybe they're college students with an intership!

What kind of Mustang loses to an Automatic RX-7 with an air filter?

An Auto 4-Banger, that's who!