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... Guess you didn't read my post about CFM requirements of the turbo and what the filter can flow.... LOL that's ok. You're partially right; any outside cool air is a lot better than engine compartment air.

Elwenil, I've got the SRT-4 too, all set for rally. Been a member of the SRTOC for a loooong time. I agree - I'd NEVER use anything besides oil in my performance turbo engine!!! It is totally unknown what coking will take place on a non-water cooled turbo! those PTFE additives have been...

Me again, just had to do some basic math. If the LDT engine has a volumetric efficiency (VE) of only 50% at 2600 rpm's, then it is only drawing 234 cfm through the air filter and into the turbo. Roughly, if the engine had a VE of 70%, it would only draw 324 cfm. Hope that helps with the...

... WHEW this is one hell of a hot topic. I forgot to touch on EGT's: If you want to keep them low, reduce intake resistance (it is already minimal from my math in the deuce, so no factor) OR increase the collection side of the turbo. Backpressure before the turbo (also called a "choke...

I just don't like the filtration rate of the K&N. Not rated well enough in particle size until the filter gets dirty... It also clogs real fast in dusty environments... If you never go off road, you'll probably never have to do anything with it for a couple of years. Good news on your gauges...

I used to use K&N too. They don't match filtration levels until they start to become clogged, then they only have the filtration and flow rate of a similar paper filter. The size of the filter is so large that flow over time is not really disturbed with light clogging. When it does get dusty...