[xsmitherz]

Just had 2” Speed Engineering LTHs installed with an xpipe. It’s connected to a corsa valved exhaust. Does anyone know what this weird annoying flapping sound is under light throttle? It’s so loud and out of all the videos I’ve seen of Camaros with headers I haven’t heard this before and I’m wondering if something is wrong.

https://youtube.com/shorts/Ysozdrp_u...iL5YpG8Yz0glAx

[Dynamical]

Sounds like long tube headers and Corsa to me. You ever have headers on any other cars before? If I had to imagine something wrong with that sound it would be that I didn't hear you go WOT

[xsmitherz]

I just feel like the first 10 seconds of the video it almost sounds like a flapping machine gun. Idk in person it sounds really bad like a clapped Honda

[Dynamical]

Corsa Xtreme? The Xtreme is probably the closest muffler there is to a muffler delete. You add longtubes to that and its slappy. Got cats? No cats makes it worse. I imagine your valves for the mufflers were open in the vid too.

[bishopts]

Also speed engineering exhaust is very rigid. If the engine moves the exhaust does to, just as much. So it could be hitting the cross brace under the center of the car.