Quote:
Originally Posted by Kostamojen
FYI, that dyno chart I posted is comparing stock headers to some JDM equal length headers that I installed between runs.
The headers/exhaust don't get rid of the dip.
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Ahh yeah i see that.
You know i was looking at some different brands for headers and dyno runs on legacy and 2.5rs. So far i really don't see that big of a dip for TWE, OBX and Cobb headers. they look smoothened out, at the very least. I still see hints of that dip, and im looking at other threads with AFR readings and it gets pretty rich around 3-4k for the N/A motors. Lots of people have better looking curves with that ranged leaned out. But borla and some other knock offs with the same sort of collector design still show that dip regardless of increased in power.