i've read the bimmerforums DIY one several times and still don't fully understand it. One day, i removed what i thought was the baffle, but it doesn't make sense to have that big of a hole sucking in air from the engine right there.
__________________ <span style='color:blue'>1992 325is
I think i'm in love ...
"Racing in a honda is like racing in the special olympics ... even if you win, you're still retarded."</span>
You are right, you end up with 4 inch hole in your box. If you the take the baffle from inside the box out also it greatly frees up the air flow. It very simple to get some 4 inch pipe and extend it forward a few inches to get the "fresh" air from in front of the radiator.
__________________ <img src='http://img.photobucket.com/albums/v417/dport135/newsig.jpg' border='0' alt='user posted image' />
'95 318i Brembo Sport Rotors, B & G Springs, Tokico Shocks/Struts
Basically, it's loud and sounds like there's a hole in it somewhere. Have had it checked twice and no holes found. The dealership said, by process of elimination, that the baffle is failing. I'm looking to quiet it down.
Look around online and buy someone's airbox that bought a CAI. Most cost effective way. But the baffle has nothing to do with the muffler or exaust system. But it does make things louder when you remove it.
__________________ Kevin (President TBEA)
"WAAAAAAARRRRRIORS, come out to plaaaaay."
i was looking at my old box to see what u guys mean, but i cant figure what it is that u take out.???? it all looks like it belongs. in a 94 325i airbox, if i am looking at the front of the car, where exactly is it? top rt, lower lefr front, ect.????
I'm very new at this so thanks for your patience. So, can a baffle fail? When the "service adviser" said it was failing, I assumed it was part of the exhaust system. The dealership broke a couple things when doing my inspection and also put on a faulty rear shock, so I hate the thought of going back there for anything. What's a good way to really find a bimmer mechanic you can trust? I'm not at the point of doing too much on my own yet.
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