ART pipes are different. They are engineered to give you hp/tq through out the rev range hence the 600 price tag. Test pipes are 150-200. And u will lose low end torque but will gain high end hp/tq. So in my case, yes I would have to rev higher to hit that sweet spot. Don't worry, I'm saving up for the ART pipes and ditching the test pipes. I'm sure it's worth it and I'm not going back to stock cats, lol

 

the difference between art pipes and regular test pipes may be a maximum of +/- 10 hp/tq at any given point in the power band and that's being generous. at the end of the day they're still just open pipes like any other test pipe and it wont be a power difference that someone would easily notice on the road with any brand.

 

Yea I already had my entire muffler off for a week just messing around with it and I didn't notice a difference in anything either. So im not to worried about it.

 

Alright guys this is going to come to a shock to some of you... But I purchased a full new true dual cat-back exhaust system instead of going with the straight pipe from the cat back. I will be putting it on in a few days and am deff excited!! I have watched tons of videos of people who got the same exhaust and the sounds it makes!!