Quote:
Originally Posted by Reaper
The header was designed for emissions. The intake was not.
If you cut out the cat from the factory header and tune it on e85, it's very easy to make over 200whp with a stock car. Factory header works pretty good. So does the intake.
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A tune on e85 alone will get you close to 200WHP.
Are you sure you want to stand by that statement 'factory header works pretty good', do you mean for emissions? Then I agree. From a performance standpoint....absolutely not. Dynos of a bone stock car adding just a CAI show minimal gains, bone stock and then adding a header shows a great increase in power and torque.
Reaper and others; may want to take a look here:
http://www.ft86club.com/forums/showthread.php?t=31555
Pretty good compilation of dynos with various setups, focused around headers.