Fujita CAI and SRI systems... yay or nay?

[Huligan]

Hi all,

Been looking at acquiring a Fujita CAI or SRI for my whip seeing as how Cobb and HKS are constantly out of stock and I know a local dealer that has Fujita intakes.

http://www.f5air.com/

However, I'm a little wary that I have not seen many (if any at all) posts on the usual forums regarding these intakes.

Anyone have any experience with them?

Thanks!

[eg6motion]

they have neither the proper MAF diameter nor an air-straightener, i'd go elsewhere. And they also do not advertise an SRI currently, least I haven't seen it. Best bet is to use the AEM. Its the cheapest intake available other than Cobb that has an air-straightener to maintain close to stock trims.

[Huligan]

well... im from the school of thought that the air straightener is well... bullshit :p

but i have been wrong before ;)

as to the proper MAF diameter, where did you get that info? And how does the improper MAF diameter impact anything? (sorry if its a dumb question)

[mazdaspeedster3]

Do a search, this has been talked about to DEATH! Your best bets as you can not go with a MSCAI any more is the Injen. Dyno proven with the best gains and no CEL's. If you worry about Hydrolock then wait for the COBB. No more to talk about!

[Kain]

well... im from the school of thought that the air straightener is well... bullshit :p

Here's my thinking: the stock airbox has the air straightener. Automobile OEMs are notorious tightwads that will scrimp and cut every corner to save one cent on a plastic piece, because when you're producing hundreds of thousands of them, those pennies add up. It would be cheaper to R&D and produce those airboxes without the air straightener than with. Plus, people have measured that it helps the MAF to instruct the ECU to operate at stock fuel trims. For those of us that don't plan on flashing or using a piggyback, this is important.

[phantom6294]

And how does the improper MAF diameter impact anything? (sorry if its a dumb question)

I'm no expert... but if the housing is too large or too small, it could/would/should affect the MAF readings. As I understand the theory, pulling the same amount of air through a larger tube requires a lower flow rate. That lower flow rate (and thus lower cooling effect) passing over the MAF would in turn make the ECU think less air is entering the engine than is actually entering and thus provide less fuel than it normally would which would result in the engine running leaner. So, if the MAF was designed and tuned for a 2.5" MAF housing, using a 3" MAF housing would throw that tuning off.

[lewisb01]

now I just did this same post a few days ago about the Fujita and heard that is was good piece from a few people. Now it sounds like garabage and I'm real close to buying one now i'm not sure!

[mazdaspeedster3]

I have not seen any where that the Fujita was a good purchase as a CAI. Just the cheapest CAI out there. The Cobb SRI is a sure thing to cure your whoas on Hydrolock and install time. The Injen CAI is by far the best at this time next to AEM (who makes the MSCAI that you can no longer get).

[skeeter149]

i have a mscai intake and recently got the aem straightener. the trims are much better and it feels much better. i dont have any logs but i am sure people will be posting up logs. but i wouldnt buy another intake without one based on my experience. take it as you will but it is funny the oem has one, and that the car feels so much better now that it has one on my mscai.

[lewisb01]

What about HPS CAI?

[truredspeed3]

Fujita is all knock-off shit. Same with Injen...Its all chinese garbage.

[mazdaspeedster3]

Injen is Chinese? Strange...

[mazdaspeedster3]

This is what I thought since I lived down the street from them for a small stint in the 90's.

For over a decade Injen Technology Co. Ltd and our sister company has played a major roll in the design and development of air intake systems. Injen Technology is based out of California in the same city and just a few miles away from the famous Pomona Winter Nationals Top Fuel Raceway. Injen Technology's history is a classic success story of a small manufacturing company turned industry leader of aftermarket performance products.

[Huligan]

i got trigger happy and just purchased the injen CAI... now i cant drive like an idiot during rainy days... bummer ;)

[mazdaspeedster3]

Eh, I have the injen and live in Michigan, we get plenty of rain and no issues. I have said on here before, I live in Portland OR. and have had CAI's on every car I have owned since 88 and never heard of people getting hydro lock so much until I was on this forum. I dont drive looking for puddles, I drive dodging them even with teh stock intake. If I wanted to bomb puddles I would have bought a truck. You will be fine. You will see how that design is, it bends UP into the fender away from the ground.

[eg6motion]

Fujita is all knock-off shit. Same with Injen...Its all chinese garbage.

worst comment of the day. Injen is far from knock off. They are one of the very few intakes that incorporates the CORRECT MAF diameter to reduce or eliminate CEL's. Its visible on the intake where the pipe is reduced for the MAF, hardly a knockoff since nobody else has this design. CP-E is the only other company that has a reduction, but it is a machined piece that was welded in separately. Injen and AEM are the cheapest CAI's that don't CEL. Cheapest intake that doesn't CEL is Cobb, who is MIA. Don't go HPS or Fujita, they ARE knockoff/generic intakes. They bend a 3inch pipe, weld a MAF adapter to them and call it a day...this is not something you want to d*ck with unless you prefer CEL's and running lean. Unfortunately the Mazdaspeed CAI is the same way aka, the OLD AEM intake. Hopefully the new AEM with straightener makes its way to mazda dealers at some point because its clearly a better and cheaper alternative to get a proper fuel trim.

[mazdaspeedster3]

worst comment of the day. Injen is far from knock off. They are one of the very few intakes that incorporates the CORRECT MAF diameter to reduce or eliminate CEL's. Its visible on the intake where the pipe is reduced for the MAF, hardly a knockoff since nobody else has this design. CP-E is the only other company that has a reduction, but it is a machined piece that was welded in separately. Injen and AEM are the cheapest CAI's that don't CEL. Cheapest intake that doesn't CEL is Cobb, who is MIA. Don't go HPS or Fujita, they ARE knockoff/generic intakes. They bend a 3inch pipe, weld a MAF adapter to them and call it a day...this is not something you want to d*ck with unless you prefer CEL's and running lean. Unfortunately the Mazdaspeed CAI is the same way aka, the OLD AEM intake. Hopefully the new AEM with straightener makes its way to mazda dealers at some point because its clearly a better and cheaper alternative to get a proper fuel trim.


Well written!

[eg6motion]

i got trigger happy and just purchased the injen CAI... now i cant drive like an idiot during rainy days... bummer ;)

nice. Black? I rock the black one. Don't forget your filter condom hehe. Its a good idea to purchase the Hydrashield, water flies off it very nicely.

[mazdaspeedster3]

Man, they didnt have the black when I got mine. The polished one looks ok in there and draws some attention.

[controlo]

^once you go black, you never go back. :)

:(

[lewisb01]

I guess i'm going to get the Injen on PG seems like a fair price with s&H. And I almost bought that Fuijta I DO NOT WANT CELS.

I want to do the most upgrades on my car without having to buy a boostcut mapclamp etc...

[Huligan]

I got the chrome one... I think black on black is a bit of overkill...

Anyways... whats a filter condom? heh. the dealer said he could get some sort of bypass but the Injen guy actually recommended against.

edit: mmm injen hydrashield... ill look into it...

is that what you meant by filter condom? injen's hydrashield?