Quote:
Originally Posted by RiXst3r
Once you get over about 13psi, the stock airbox becomes a restriction and your turbos will work harder to make the same boost.
All the big dyno numbers come from cars with DCI's
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I dyno'd my car with the aFe last summer and, though I have the Dinan Stage II & upgraded exhaust, I had a sustained 13-17 rwhp increase with the DCI installed. Mind you this was with less than friendly conditions ........ 97 degrees w/ near 70% humidity and less than adequate "wind" with the dyno. BTW, unbeknownst to me at the time my car was also suffering from a faulty HPFP that was replaced within a couple of weeks of the dyno run.
Not sure what I would have now considering I have catted DP's installed.