Just was trying to help someone out with their b6 s4. It has jhm 91 tune, piggies, and sebring muffler. Isn’t tripping a CEL but he said it seems to lose power when going up a hill and he has to really gun it to get it going again. And sometimes he hears an odd ticking noise from the engine when this happens. Wasn’t impressed with the tune because he said all he feels is like the throttle is jumpier.
I had him take me around the block and do a few pulls. It didn’t exhibit any weird behavior but it didn’t feel right… I’ve been in a b6 s4 with tune and fullback exhaust, that felt quite fast, pushes you back in your seat nicely. This felt around the same speed as my GLI, maybe even slower. I almost wonder if whoever did his piggies didn’t actually do them.
I know it’s vague. But does it ring any bells? What should I log for him to troubleshoot?