an intake mod that works!

[LikeCDoos]

nice link good to know...weird that the stock filter preformed the best

[rwh11385]

haha, I did the same thing to my G20. I did feel a differene...... in cold weather, a big difference in acceleration on the highway. But when it got warmer--no difference really. But it sounded badass. But then I paid to get a new airbox from another owner when I was selling it.

Hmmm......One of my friends are parting their 325i and had their airbox lying around. (AFM too if anyone needs one, he'll sell it) But I could buy that airbox off him and cut it and still have a spare. :D

[randomtask37]

umm, no? i said, little performance difference. which means, yes i felt something, but not much. plus, have u ever seen the stock filter! its a monstor! seems like your better off putting just about anything else in it

http://www.bolhuijo.com/airflowtest/

oooooo, ok. shoulda posted that the first time :D

[TIATO]

Hey RT37 - any improvement in throttle response?

[nando]

have u ever seen the stock filter! its a monstor! seems like your better off putting just about anything else in it

that's the whole idea. it has more surface area, which means it can flow more and it filters better at the same time.

[rs4pro3]

The guys over at E30zone.co.uk have already done this mod 8) But instead of cutting off the bottom of the box they drilled multiple 2 inch holes in the bottom of the box.
I can't find it right now but will soon.
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[Sean]

The guys over at E30zone.co.uk have already done this mod 8) But instead of cutting off the bottom of the box they drilled multiple 2 inch holes in the bottom of the box.
I can't find it right now but will soon.

Did that make the sound that you would get with this mod?

[rs4pro3]

http://com2.runboard.com/be30zoneforum.ftechhelp.t1600

There is the link

[randomtask37]

Hey RT37 - any improvement in throttle response?

a bit.

[Rob]

they drilled multiple 2 inch holes in the bottom of the box.

thats similar to the motorsports airboxes available from porsche, they're OEM boxes with wholes in them for more noise

[rwh11385]

thats similar to the motorsports airboxes available from porsche, they're OEM boxes with wholes in them for more noise

for real?

From the UK guys:



I'm tempted to try this myself. I've contacted a buddy with a spare box and seeing if I can have it.

[Sean]

Now I wanna find a spare box. 8)

[ETA fro]

it seems to me, if you take his cutting idea and make a good custom heat sheild, you would make that whole space under and infront of the airbox, your airbox. just making a big free flowing air box, with a good heat sheild, (ie not tin foil) you should see the most gains from that.
my thinking is that it will be like cai, combined with the proven stock airfilter

but here in socal, it might get mighty dusty

[tonytony]

I dont know about you guys, but when I put a cone filter i my car I didn't notice any differenct in sound, the only thing different was a whilstling noise from the filter when the hood was up.

[KenC]

http://com2.runboard.com/be30zoneforum.ftechhelp.t1600
There is the link

Check out the avatar on the third post. Looks a bit familiar...