Is that powdercoated greddy piping or did you increase the diameter?

The middle pipe is a stock Greddy but with AN fittings (going larger there all the way to the turbo is my next step), the last pc of the actual intake pipe is all custom 3.5" pipe. The MAF housing is billet and has a honeycomb air straighter built in.

Did you have to mess with that oval opening at all?

What oval?

The hole where the stock air duct comes into the engine bay.

I have 3.5" tube going through there ........ Can't remember what I had to do to get it through but I don't think it was a biggie ........

Brettspeed Intake ...........Done . Only hang up is that it didn't turn out as easy to do as I had hoped and isn't really something I would do a DIY for - which was my original plan .

Thats what i have through there 3.5" od

That's nice. What was more difficult than expected? I'd remove and put a cap on that resonator chamber (the one hanging off the accordion) it can't do anything once the OEM horizontal run of the intake is removed. It's only taking up space as it exists now.

Even if you don't do a DIY, the materials and methods you used would be good to list for someone that might be interested in the future.

No problem getting a 3.5" thru there, even with my thicker aftermarket rad. Mine is 3.5" all the way to the Greddy pipe.

*Was hoping it wouldn't need a screen as there was so much straight tube before the maf .......... It did need one .
*Had to make a straightener for the filter at the end of the tube to get filter to sit right .
*Had to cut away one flange for mounting that plasic piece between bumper and front engine bay.
*Filter is a really tight fit and has to be crushed a little by the bumper mount .

I just don't think people will want to deal with all of that . It does sound great and looks pretty good IMO , and was cheap to make .

that looks bad ass 9k. sell me 1 ? lol

Get a Greddy Turbo kit and I will, :lol:

I decided to get the Revi Air Duct and leave the Stock Air Box. I will see if there is any discernible difference between stock and stock with the Duct. *shrug*

AWWWW

:rock:

I have to start saving those pennies up ... takes a while ... wait :hahano:

I did that when NA and was prettty happy with the outcome .. Just make sure you seal up the join as RB doesn't supply anything to do that with.

Can you provide some insight on this? I thought it would be a direct fit.

EDIT: Found your thread from 7 years go. Thank you!

I think he just means to add some kind of sealant around the rim of the duct-to-airbox outlet. The stock duct has a thin strip of foam sealing the gap, you probably will have to do the same with silicone or tape.

I am trying to install my Revi Ram Air Duct to the Stock Box and I ran into a couple of problems:

1.) The duct does not come anywhere near the entrance to the stock box. Is this normal? Shouldn't this sit flush into the stock box the way the VFAD does?

2.) There's a cable that makes anything the size of the Revi Ram Air Duct nigh impossible to fit through.

Should I be using something to connect to the Duct to the Box or just let the air flow through? It seems a bit incorrect.

I cut up the VFAD to fit the RB duct to the stock airbox . Worked great . Had pics on how to do it in this thread but they have dissappeared .

https://www.rx8club.com/series-i-aft...-airbox-97962/

Confusion.... :(
 

I just spoke with a representative at Racing Beat and he claimed that it was "not supposed to go right into the airbox" because of the Ram Air Effect. That doesn't exactly sound right to me.

No other ram air system ever made has a big gap where air can escape like that . See what he says to that ........

I just took your advice and cut the VFAD. This looks RIGHT to me. The Ram air is now FLUSH against the opening and the cut VFAD is now flush into the Air Box. I was thinking I might weatherstrip the seal where the air box touches the opening.

Good Stuff, Brettus.

The more airtight you can get it the better IMO

so which gives the best gains???!