who else has the vibrant head/dp combo ? & if you have it, did you install it with a new gasket or old one ? or not even one on ?

i have it, & was wondering if i should get a new gasket for it, i used my old one

 

to be honest man, sell that setup and get your money back. this is just my opinion, but i've heard a lot of our cars with it on and it sounds like absolute crap. get the CA V2 headers with a Mandrel Exhaust systems downpipe. however, if you insist on keeping this setup, you should always replace the gasket ANYTIME you change the headers. never re-use any gasket.