Quote:
Originally Posted by ZL W0N
I would assume that I am going to make a tad less boost since I have no cats. I'm just trying to see if upgrading the HX is a must or just a preference. I would be tracking the car a lot. Maybe here or there. And it's not my daily driver. Just driving around, not getting into boost, should be just like it is now.
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I did not do a before and after IAT2 log attempt, I would at minimum if you didn't do the HX to at least get the rotofab expansion tank as a cheap alternative to increase the amount of fluid capacity circulating in the factory HX. Heat soak is even worse now with double the boost.