AFE dual intakes or just the KN Filter?

dlouie87 · 01-12-2011, 03:28 AM

Are there "significant" differences from either or?

I did a search and some prefer the AFEs, then others just say get the filter.... and then some get the injen.

It's for a 335i

-Daniel

enrita · 01-12-2011, 04:34 AM

depends the amount of boost you are planning to run

tscdennab · 01-12-2011, 04:47 AM

A drop-in filter is definitely not sufficient for high-boost (basically any tune aside from the BMW Power Kit). I have dyno-tested, you get more power with a drop-in but not the most power. I mean, if there is more power on the table, why not take advantage of it ? However the AFE intake is not one of the best choices, because it draws hot air (despite it's metallic crap shield which gets as hot as the engine). You will lose low-end power and torque with it. Look into the Stett CAI, it's alot better than BMS, AFE or Injen because it draws cool air from outside. For less money you can do a Mr. 5 intake (search). For more money you can get a Dinan intake which is the best intake available.

ThreeseriesFTW · 01-12-2011, 11:30 AM

There is a significant difference with the afe. You will loose power. It's not because of heat, as people think. It's because it's extremely restrictive. Hot air is better than no air.

Although, if you were to remove the heat shield, you'll probably gain some hp

citation: search for "afe dyno"

01-12-2011, 03:28 AM	#1
dlouie87 Lieutenant 31 Rep 509 Posts Drives: 2007 AW 335i e90 Join Date: Jan 2011 Location: Chico/Yuba City iTrader: (2)	AFE dual intakes or just the KN Filter? Are there "significant" differences from either or? I did a search and some prefer the AFEs, then others just say get the filter.... and then some get the injen. It's for a 335i -Daniel
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01-12-2011, 04:34 AM	#2
enrita Major General 161 Rep 7,377 Posts Drives: 335i - Big turbos Join Date: Sep 2008 Location: Italian in Sweden iTrader: (0)	depends the amount of boost you are planning to run __________________ 07 335i AT - MOTIV 750 - MHD E85 BMS flash - BMS PI - JB4G5 - Okada Coils - NGK 5992 Plugs - Helix IC - Snow Stg. 3 - Stett CP - Custom midpipes with 100 HJS Cats - Bastuck Quad - PSS10 - QUAIFE LSD - BMS OCC - Forge DVs - AR OC - ALCON BBK - M3 Chassi - Dinan CP - Velocity M rear Toe arms - Advan RZ-DF - LUX H8 - Level 10 AT upgrade
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01-12-2011, 04:47 AM	#3
tscdennab Banned 153 Rep 1,809 Posts Drives: BMW 335i Join Date: Oct 2010 Location: Europe iTrader: (0) Garage List 2008 BMW [6.24]	A drop-in filter is definitely not sufficient for high-boost (basically any tune aside from the BMW Power Kit). I have dyno-tested, you get more power with a drop-in but not the most power. I mean, if there is more power on the table, why not take advantage of it ? However the AFE intake is not one of the best choices, because it draws hot air (despite it's metallic crap shield which gets as hot as the engine). You will lose low-end power and torque with it. Look into the Stett CAI, it's alot better than BMS, AFE or Injen because it draws cool air from outside. For less money you can do a Mr. 5 intake (search). For more money you can get a Dinan intake which is the best intake available.
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01-12-2011, 11:30 AM	#4
ThreeseriesFTW Private First Class 15 Rep 194 Posts Drives: 335 Join Date: Nov 2010 Location: California iTrader: (3)	There is a significant difference with the afe. You will loose power. It's not because of heat, as people think. It's because it's extremely restrictive. Hot air is better than no air. Although, if you were to remove the heat shield, you'll probably gain some hp citation: search for "afe dyno" __________________
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