I have had the catback for some time now and like it. There's a set of FI cats for sale locally and I'm wondering what it would sound like. Any input?

 

Not that great due to the exhaust

 

Is your car FI if not I'd rethink that. The FI cars use less back pressure allowing for more exhaust gasses to flow but, the turbos or superchargers muffle the sound. If your running NA losing too much back pressure isn't a good idea.

 

FI in this case stands for fast intentions lol

 

If you're running those Top Speed axle back mufflers and are considering Fast Intention HFCs it won't sound good! HFCs release a higher volume of exhaust compared to OE cats and over power your system giving you major rasp you won't enjoy!
Gary

 

I agree with Gary on this.

 

I have long tube headers with the Top -Speed and is is on the loud and raspy side. Almost seems like it is getting louder over time. It's possible that the fiberglass has blown out of the mufflers.

 

I've heard something similar like resonated test pipes will lower the rasp dramatically. I wonder if it's true?

 

Hmmm thanks! It looks like I won't be getting those...

 

Dddaaaammnn, bro. Just ate 3 rolled tacos and about to start on a machaca burrito. I'll let you know how it turns out.