I bought the zzp pro kit and it's only reduces the amount of exhaust leak it does not fix it completely. Really anyone that decides to buy any headers your best bet is to have it welded up at some point.
But remember if you decide to have it welded together. Then decide to lower your car later on, you are likely to run into problems with something on your headers rubbing or getting twisted somewhere in the system.
So my advice is to plan ahead!!!! If you plan on doing suspension and headers (and possibly shorter dog bones which I don’t recommend with headers the clearance it the fan can cause the headers to start melting the fan or fan housing) don’t have it welded until both are installed. Doing this could save you some serious time and money.
