R
rangerjoe2001
Guest
whats a good one.. and will they work on a 2000.. most I have seen are only up to 99
kmagnuss_2000 said:I believe the 2000 xj has two cats right off the exhaust manifold...which means if you want a high flow cat, you'll need to replace your manifold with a older xj's (stock or header) and replace the downpipe, then put the new cat in the position of the 99 and older xj's. I've heard that the 2000 model year xj's have very restricted exhausts and computer programming...so it would make sense that if you replaced them...you could gain some power. For some reason 20 hp is sticking in my head for these mods. I think I read that somewhere, but that doesn't necessarily mean it's true. Good luck.
BlackSport96 said:I don't know about for the newer ones but a lot of people around here say that a high flow cat will make no difference on the older body style (96-older) since they come with pretty high flow cats to begin with. Money'd be better spent on intake, muffler, headers, etc.
kmagnuss_2000 said:I believe the 2000 xj has two cats right off the exhaust manifold...which means if you want a high flow cat, you'll need to replace your manifold with a older xj's (stock or header) and replace the downpipe, then put the new cat in the position of the 99 and older xj's. I've heard that the 2000 model year xj's have very restricted exhausts and computer programming...so it would make sense that if you replaced them...you could gain some power. For some reason 20 hp is sticking in my head for these mods. I think I read that somewhere, but that doesn't necessarily mean it's true. Good luck.
ecrogers said:Has anyone else heard about this on the 2000's? I figured they had a higher flow cat like the older ones.
ecrogers said:Has anyone else heard about this on the 2000's? I figured they had a higher flow cat like the older ones.
IND-XJ said:I have borla header (old model 96) and cat back on my 2000 ltd. it gain more power and good sound. everything is bolt on except the header hanger you must cut and make new one.
rangerjoe2001 said:thats what im looking for.. how hard was it?