Quote:
Originally Posted by mike@x-ph.com
Best for what?
If you are looking for power, sound, and fitment, you have a lot of excellent options, starting with the MAD to more expensive US Made Evolution Racewerks.
What makes the Active Autowerke special is that it does not trigger the check engine light. If this is a priority, then Active Autowerke is the best.
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There are others that claim (and even guarantee) not to throw check engine light.
AA is 400 cell while they are called "ultra high flow" they are obviously not compared to Evolution, FI, Fabspeed, etc. at 200 cell.
There is also a difference in quality workmanship and fitment which is why I recommended Evolution and FI (I have heard good things from Fabspeed but cant really recommend them as I have had no experience with them).