Quote:
Originally Posted by saltywetman
Oh I see. So not guaranteed due to it being a high flow cat, but because of the design it's still the only aftermarket header that even offers the possibility of no engine check lights once flashed back to stock correct?
There isn't enough info/pictures on the Fujitsu EPU's header to high flow cat to see if it has a bung after the high flow cat, but HKS definitely does not have one as the pictures show both bungs right before the overpipe.
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It just comes down to this:
if you don't want a CEL, get a tune to get rid of it.
If you get a header and no tune, what's the point? so do it right and get both at the same time so you get the maximum benefit out of the header. otherwise, you're just throwing money away on things that make your car feel faster.