No their not related, but two things. One, my car was seeming a little sluggish. Almost like a dirty air cleaner even tho they are relatively new. It's been a while, so I bought some Techron additive. Immediately the cars performance improved. I mean alot and within a few miles!! Think there was something blocking an injector?

Also, I'm curious about hearing from those who did the ECU upgrade. 15 ponies for $500.00. Do you really see much of a difference from 15 horsepower? I read somewhere you can expect maybe a 5-6 HP gain with K&N filters. I did feel a slight improvement, in the low end, but if thats 5-6HP, what do you actually get from the 15 HP of the ECU re flash?

By the way, 4 years, over 40k miles including winter driving, and the paint still looks like new. Best paint job I've ever seen on any car.