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Old 03-14-2011, 07:08 PM   #8 (permalink)
aerohead
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intake/exhaust/lubes

Quote:
Originally Posted by Pendragon View Post
I realize this is an aero question, but you might want to also look at some drive train mods such as cleaning up the air intake. Most OEM intakes strangle the engine and then there is the matter of the exhaust. You can usually get some benefit of a cat back reduction in back pressure by replacing the muffler and/or some of the rest of the exhaust without getting too loud. That and replace the lubricants with good quality synthetic lubes and don't forget to give it a good tuneup and clean out the injectors and intake valves with an additive such as 44K.
The only point I would make,is that should you do any of these mods you must completely redo your baseline mpg with these new mods in place or you'll never be able to determine what did what when aero-modding later on.
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