Originally Posted by j2m
You are correct, the pairing is important. OEM will have a tendency to be raspy when removing cats, especially with 2 resonators.
I am now running Gintani quad resonated catless with valved race with zero rasp. I also have Gintani valved sport and didn't get any rasp either. I like the sound of the megan
I'm sure you'll like it. If it's still raspy I'd add a couple resonators up top
Dude that setup sounds insane...I've always wanted to jump on the Gintani race exhaust but have been afraid of how loud it would be. Do you have a video of how your quad resonated catless + valved race sounds? Very interested to hear it!