with my headers on my 90 IROC i keep getting exhaust leak where the header meets the Y pipe. i once saw on horse power tv on spike that a company made a product that clamps the two pieces together so that it elliminates leaks. if anyone has any info that would be great.

Why exactly is it leaking? Are you running an aftermarket setup? Why type of headers, shorties, mids, or longtubes?

i have headers that go into custum bent pipes to my patriot side pipes

http://store.summitracing.com/partdetail.asp?autofilter=1&part=WLK%2D33226&N=700+4294923429+4294919986+115&autoview=sku
Those work pretty good.

you are running proper exhaust gaskets right?

there should never an exhaust leak with cast iron exhaust manifolds or headers, as long as you have the proper exhaust gaskets installed. if a proper gasket is being used, you might have cracks or holes somewhere in the system.