Catted headers won't change the fact that the Extremes are insanely loud. Catted headers with a Corsa Sport though? Still loud, but better than the Extremes. My Lund tune takes out the cold start within seconds after starting it up so my neighbors don't suffer.
Nothing yet, we don’t think this will be an option from Corsa.
Corsa Extremes plus any header setup is loud, it’s too loud for me personally. I like the sport catback (touring mufflers) paired with headers. Much more tame, still loud but sounds just right.
I think with the sport exhaust it would be a lot less obnoxious. I had Kooks 1-7/8 on my G8 GT with Corsa Sport and it sounded great. I'm sure you can find some videos of other cat-less LTs with the Corsa Sport, the sound volume shouldn't be much different from one header to another if they're both the same size LTs and both catless. Corsa's video shows em with touring exhaust I believe, it's a lot more muffled.
It's not my daily, it's just a toy so it doesn't really matter. Also I just don't see a lot of this kind of enforcement in Houston anyway. The sound is obnoxious, but amazing when ripping full throttle, especially if there is a wall next to you or a tunnel hahaha.
You could always add cats if you wind up not liking it in person. The x-pipes could be cut up and cats could be welded in easily at an exhaust shop as long as they know how to work on stainless and not just mild steel. You might find some clamp-able slip on cats too that fit. You can use some 49-state legal race cats as long as they're slim enough. That's what you'd get on most aftermarket headers anyway AFAIK. I don't think factory catted LTs are CARB approved, but I could be wrong.
tons of us run long tubes in the lovely sunshine state of CA w/o any issues.
Cats really don’t lower the volume on these cars. We’ve tested that theory and realized volume is dang near identical.
So far we’ve done a handful of installs with these, they’re quality and extremely easy to install, zero hiccups on fitment as well.
We have a few sets in stock ready to go, time to take advantage of your tax return... I mean parts stimulus check.
