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Old 05-01-2004, 05:47 AM   #1
Mr. Euro E30
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Join Date: Feb 2003
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K & N Air Filter - Cone

I just got my car checked today and the mechanic said I need to change my air filter. I'm thinking might as well to go with the K & N cone air filter.

- Where did you guys get yours from ? and how much are they ?
- Should I get the heatshield too ?
- Do you have any recommendation for other brand / product ?
- Does it improve your performance ? (how much power increases ?)

ps: this is for 1989 325is - E30
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Old 05-01-2004, 06:08 AM   #2
Was touched by Micheal
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its deffenitely better,the motor doesn't have to work to suck in the air.
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Old 05-01-2004, 06:22 AM   #3
King Luis
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i heard that using a cone filter will cause hot air to get sucked in while in traffic
Current:2013 Candy White VW Golf TDI
Mods: TBD.

Sold:2004 Silver Gray M3
Mods: Dice Unit, EAS Angel Eyes, Painted Reflectors, CSL Diffuser, Smoked Corners, PSS10s, 15mm Front and 10mm Rear Spacers.

Gone:1990 Brilliantrot 325is
Mods: Alpine speakers and HU, Euro Projectors, Magnaflow Muffler, Euro Smoked Tails and GC Coilovers.
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Old 05-01-2004, 07:01 AM   #4
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it will if you don't have a heat shield. But pretty much every air filter sucks in the engine heat, if there is no air blowin into from outside. Doesn't matter what filter you got.
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Old 05-01-2004, 08:04 AM   #5
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unless you have a true cold air then yeah you`ll get hot air, but keep in mind your air mass will be larger going into the motor, if only slightly its better for overall power.
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