I'm a little confused about what you're saying because when my car is reporting negative knock it is definitely adding timing on the other hand when it is reporting positive knock it is pulling timing so I'm not sure what you're talking about
That's exactly what I did went with some inch and 7/8 stainless power headers cat delete
That's exactly what I did when was some stainless power long tube headers did the cat delete couldn't be happier
Thanks, I need to do something now that I'm on this custom tune. there's no cat protection and I'm going to melt those Factory catalytic converters pretty fast. they're not going to last long now like to get some long tube headers and get rid of the factory manifolds and catalytic converters
Only suspension mods I have is a set of Ford performance half shafts and the qa1 carbon fiber driveshaft I did swap the rotors out also though it's not a suspension mod my best 60 ft that day was a 1.511
Nice run my 21 vert with Roush 2650 is still on pump gas and Factory manifolds be nice to get a fuel system some long tubes with E85 but I definitely had fun at the track Saturday