[AckermaNzx3]

i have a ztec and i took off my exhaust manifold and replaced it with aftermarket...it came with a new gasket its a bit of a pain in the ass to get off. however if your leaking from the block i would highly recomend taking it off and putting a new gasket there, and if you have losened the bolts under the car holding up the flex pipe itll give the cat a little play so if you cant get the egr line off theres enough room to push the cat down for clearence...be careful tho because ive herd a lot of problems with ppl breaking the egr line at the welds.