would the y-pipe and cats off a 2004 sierra 4wd bolt up to a 2001 silverado 2wd? my cats have took a dump and i could get some off this sierra that this guy is parting out. i know its not the best but its alot cheaper than new ones.

Just ask him if his has a "Y" pipe or two pipes into the muffler. Those are the only 2 shapes they come in. More than likely yours and his are different.

Just ask him if his has a "Y" pipe or two pipes into the muffler. Those are the only 2 shapes they come in. More than likely yours and his are different.

if there are only 2 ways they come ill at least know when i look at it. my friend has a 2003 silverado 4wd and it looks the same. ill have to check this guy out. he said he would sell the y pipe with cats and o2 sensers for 100 bucks. thats cheap

See how much more it would be for aftermarket ones. You may spend more, but it may be a reasonable difference that will give you better performance. Not to mention they're new.

See how much more it would be for aftermarket ones. You may spend more, but it may be a reasonable difference that will give you better performance. Not to mention they're new.

for the nice magnaflow cats its about $500 dollars and its $200 for some o2 sensors. like i said im sort on ends at the moment. its not going to be the best but it will work. so i think $100 dollars if it only lasted a year then its worth it. besides one of the joys of being low means that there isnt a muffler shop in town that i can drive up on their lift. hehehehe

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