[ft86me]

so have I have the ARK test pipe as well as catback exhaust and have an issue with the exhaust rattling around 3k to 4k when the throttle is pressed more than halfway, so kinda laying in on it. I have checked to see if the bolts were loose and there is no sign of anything being loose at all. I also checked the heat shield on the exhaust manifold and nothing is loose there. Mind you the test pipe does not have a heat shield so there can't be anything going on there. Since I do not have or know the torque specs for the exhaust, I tightened down everything pretty tight with an impact gun. I have noticed something though, which is condensation (not much) going from the test pipe to the catback where the donut gasket is. That portion I really tightened down in fear of it coming loose. Could this be the issue since there is not enough play in the system? Perhaps I over tightened that part of the exhaust? Any input would be great!!!

Note: mind you only in more than half throttle around 3l to 4k the noise happens otherwise it's gone. Otherwise if not on more than half throttle, the exhaust sounds perfectly fine without the noise.