Hereīs a video of my 7.

http://media.putfile.com/Rx-7-exhaust-leak

I donīt believe itīs supposed to sound like that, so do you think
it has a leaking exhaust? My only mods are ARC super induction box
and legalis catback. Thanks.

 

Sounds like it could be. Are you having any boost control problems? Did you get this sound as soon as you installed the catback? Or was it later, like a week or so later? Sometimes, you have to go back in once you install the exhaust and it has been heated up a few times, and retighten the bolts. Check your bolts, visually inspect your pipes, and watch for boost spikes.

 

Boost pattern seems to be 11-9-11, but no spikes. I got the car 3 months
ago from Japan with the mods, so I donīt really know if it came with
the catback. Iīll check those bolts

 

Sounds leaky to me, but every exhaust/intake setup sounds different.

Like it was said, check for secure bolts. As well, I find it helps to get a thin (.005" or so) piece of feeler gauge and probe along the gasket to be sure it's getting compressed all the way around.

Dave

 

Thanks for replys! Iīll shure check those bolts.

Just wanted to add, that that sputtering sound comes somewhere near
the turbos/downpipe.