Quote:
Originally Posted by LaertesSon
Hey everyone,
I installed OFH and OFT Stg2 93 tune on my FR-S a while ago, and now I'm noticing black soot on my exhaust tips.
Being catless, it would make sense to me that this happens because some of the exhaust isn't being put thru a cat...
But could it also be that I'm running rich? I know unburnt gas will cause this soot.
So, anyone with catless headers also seeing this, or do I need to get my tune checked?
Thanks everyone!
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Catless and running rich will definitely do that. You're using the stage 2 tune so this mean that you will be running richer for safety reasons. No one wants to run lean and running richer is the better option.
I wouldn't worry about it too much bud, just have to clean you're exhaust tips a little more often
