Quote:
Originally Posted by RPIpower
Yep. The key to making more power with the intake is to get more air into the stock intake system. Even then, you have to worry about air turbulance.
This whole hot air intake discussion has been talked about on the m5board and e60.net. No one on those sites buys them but I guess this forum might be a little behind.
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All of the threads I read were on e90post and N54tech. There are literally a couple of thousand 335's with the same or similar intakes. It's funny that there would be that many people using hot air intakes and all losing power. Most state that there are no real performance gains until 5,000 rpm and 14 psi of boost or higher. Many have proven these intakes reduce the work load on the turbos which offsets the slightly higher intake temps.