Is there another set up other than the blue Mazda one for the stock carb? I would love to use my K&N flow top that I have had sitting around for years, but the stock one isnt 14"

 

check out racing beat or mazdatrix they got the hats for the carbs.

 

Ya^, basically mazdatrix or RB. I have the RB power pulse hat and love it. THe sound is worth it alone with jsut a stock 7. No attachments for emission vacuum stuff though. If you need emissions, rx7.com is where you would go.

 

I appreciate the help - so basically the only option is the white racing beat for stock carbs...

 

The RB unit is not cheap, but it sure does sound nice!

 

those that have one, how does the sound change, is there much hp increase

 

I'm going to post a "how to" on my version - its cheaper and man, I like the fact that my filter is as big as my engine

 

The RB unit adds a nice throaty roar under the hood. Really sounds nice. I think the shape of the cover acts like a speaker system to amplify the sound of the air passing through, and give it a nice bass note...

 

yep^, when you step on the throttle it roars. Just from the filter. pretty much any open filter assembly will make noise. I wouldnt say hp increase though. a little more throttle response though.

 

before i get one i think i mite trade out my rusty extractor unit, that i got welded but still has that shitty ticking sound.

 

I just cut out my factory air cleaner. I cut the sides, leaving metal around the latches to seal the top, so all air still has to pass through the filter. I definitely noticed a more throaty sound, especially when the secondaries open. Can't wait for the Dell and the open air filter!! Woot Woot!!!

Travis