Evolve headers with tune and intake is a nce setup.
All depends on what headers you install this does not apply to every header setup. If you go with RPi/Evolve Type-R/RMS/de-cat stock headers the sound will be the same as stock, just louder and possibly more rasp depending on the remaining sections 1-3.i have the agency headers with cats. It has given the car a growl mixed with the note that to me is still pleasant and not trucky like the Viper. I still have my original cross pipe and Dinan cans.
If you are looking for performance, gut the cats or get headers without cats. headers will change the exhaust note a bit. The installation of the Agency was very difficult according to my installer, due to hole locations and accessibility. it is still a beautiful piece otherwise.
I agree on the sound my buddy had the cats go bad on his M5 so he bought some Agency Power headers because they gave him a good deal with their valve exhaust and he hates the way it sounds. He was so mad I was like dude I told you so lol..I can attest to this. The agency are incredibly difficult to change while in the car.
They are beautiful as well, I just don't prefer the sound they produce.
If you look at one of my
Posts on my Jeuprx-8 account, way back in the day I was one of the first people to do the oem de-cat mod. That is when I switched them out initially
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