3rd Generation Specific Talk about 3rd gen RX-7's here.

K&n Filters

Old May 21, 2004 | 03:41 PM
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FD3S DRIFT's Avatar
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what size cone filters fits on the stock intake tubes? i cant stand the stock airbox anymore, its out and its staying that way.
Old May 21, 2004 | 04:44 PM
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I think they are 2.5-2.75...but I could be wrong.
Old May 21, 2004 | 07:13 PM
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they are like 2.5 or 2 7/16.

does anyone have a part #
Old May 22, 2004 | 01:01 AM
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RD-0720 is the K&N part #..



you can go to home depot and buy some coupler pipes from plumbing department.. i can post a pic to show you how if you want?
Old May 22, 2004 | 11:59 AM
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please do
Old May 22, 2004 | 01:13 PM
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buy the a'pexi intakes
Old May 22, 2004 | 04:20 PM
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apexi intakes won't fit with any of the aftermarket intakes... cept the greddy small one... i had them, had to sell them... nice filters though.. but you can make your own intake kit for 30-40$.



i haven't had a chance to take pics yet.. but i'll get to it this weekend.
Old May 22, 2004 | 06:46 PM
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thanks man.
Old May 23, 2004 | 08:34 AM
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After I installed my greddy FMIC my air filter options were limited. I bought a Pettit recharge kit (2 K&N cone filters, one with a curved connector) and connected the filters to the turbo inlets directly. Initially I was going to connect them to the stock rubber lines, but it seemed pointless since this would position the filters right behind the radiator. The curved filter is on the front turbo, curving up and out towards the shock tower. I had to bend the cone in slightly to provide clearance for the airpump belt.



I don't know why people spend so much money on simple cone filter intakes, most of which are made out of foam to! $300 on an airbox is justifiable, but not a simple air filter element.
Old May 23, 2004 | 02:24 PM
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this whole itake project should be less than 90 bucks, so thats not to bad.

TTPETE-if you can get those pix up it would be greatly appreciated i am going out of town till tuesday and hopfully can finish this up when i get home. so thanks in advance.

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