Unless your boosting above 13 to 14 PSI the stock box is your best bet, but with meth you should be around 16-17 at WOT then you should switch to DCI's or some other less restrictive intake. Here's Cobb's take on it.
Cliff notes
- Was done with stage one which is around 13.5-14.5 of boost
- The dyno graph shows the stock intake made the same peak HP as the DCI, and made slightly more torque in the low-end and at peak
- As a final test, the top of the stock airbox was removed. The dyno graph shows appreciable gains in HP and torque across the entire power band over the stock intake and the DCI. This shows that there is power to be gained over the stock intake when restrictions are removed
http://blogs.cobbtuning.com/2011/06/...ir-box-vs-dci/
IMHO the best intake is the Dinan/Mr.5 intake as his logs show that his intake flows just as well as the DCI's. If you really wanted to just mount the pump in the trunk.
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