Quote:
Originally posted by Bethencorp
synthesis have you had any problems with check engine lights or anything else since the modification?
What exactly does it sound like compared to stock?
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Never any lights or other problems.
The sound is pure induction, a night and day difference. The airbox design on the 986 is basically a big cold air muffler. Porsche had to meet swiss (I believe) drive by standards for noise which are very low. Don't know why the couldn't make a different box for our market for a few extra $$$.
If you have ever seen open intake stacks on a race motor, they make as much sound as the exhaust at full song. So it is important for car makers to muffle the intake noise. Its easier to do than the exhaust because of the low temperature of the ambient air (compared to exhaust gas) and the slower speed of the air relative to the velocity of the exhaust gas.
Anyway, it sounds better.