Quote:
Originally Posted by Dirty Harry
Just out of interest if the FT86SF catted headers seemed the best/most noticeable. Why did you go back to stock with an E85 tune?
I’ve been tempted to get the FT86SF catted headers, but I’ve been worried about being non-compliant with the road authorities.
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Mainly because I moved to CA and didn't want to deal with a header in this state. But yeah, to me it was the most noticeable because it did the best job of flattening out the torque dip.
In my experience, any header that changes the shape of the torque curve will be the most noticeable (as opposed to something like E85 that keeps the stock torque curve shape & dip, but bumps it up uniformly).