Getting my DP gaskets today and will be putting it on. I ordered 2 just to have a extra one or if someone needs one right away! (just email me if ya do)

Im about 99% sure its the DP Gasket thats causeing the noise and slight pop at low rpms. If it was the up pipe i dont think id be hitting 17 psi every time i run it hard. Well we will see today! ill let you all know.

 

Mine pops(afterfire) sometimes when I rev it at idle if that helps, I think it's normal but I would have to hear yours to be sure...

 

but im thinking its leaking because when i put my hand under the upipe i feel water and a little air when i rev it up! why would there be water there?

 

You sure its water? Like coolant water?

 

sorry! on my last post i ment to say when i put my hand under the DP i feel water and some air comeing out when i rev it up! did i mention i can smell the fumes too! The water doesnt really smell like much! but its clear.

 

There is a rubber AC drain line that runs right above the downpipe, check that first.

 

im postive its not that! it leaking air and i wanna say condensation right where the gasket is. and i cant see if there is soot because its on the bottom. but its makeing the shity noise when i rev and it pops at low rpm

 

I would be more worried about the water, but a new gasket could do the trick. Make sure all the bolts are torqued down pretty good also.

 

this should have been put into your other thread.

 

My bad about making a new thread. So heres the deal. Raised the car and looked at everything. Come to find out... the header/up pipe gasket is blown. One bolt missing and a ton of soot around each bolt. Ill have it fixed tomorrow. Damnit, i ordered those DP gaskets for no reason. Oh well, i need to replace the used one anyways. ive been running my car like this for a month!!!!! SUCKS...