Quote:
Originally Posted by 986 Boxster
The only mod that I was considering was the underdrive pulley, it seems to add the most power for the money, but after some research I see some people are against it, including yourself. I do have a K&N free flow filter, I just took it out a few weeks ago to clean it. If it adds a couple of horsepower or not I don't really know, but it sounds nice.
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Just to clarify, under drive pulleys do free up a few HP; what I have a problem with is cutting away the boss used to lock the engine at TDC to fit one on, which make some potential future maintenance items, like retrofitting the IMS, more difficult for a shop.
As for
any oiled air filter, no. Putting an oiled air filter in the air stream ahead of the MAF is asking from problems down the road. While they may sound cool, any power improvement is at best within the margin of error on a dyno pull, and every GT 2, GT 3, and Cup race car out there runs a dry element air filter.