Loochy88

iTrader: (2)

I was working on taking off the stock exhaust tonight (99 stock z28), and immediately hit a snag. I was taking off the bolt on the wide clamp where the catback attaches to the y pipe. That bolt was rusted so bad i had to use a ton of pb and then rethread the bolt with a tap and die set. anyway, i got the nut loose, but it cracked horizontally, so the other half of the nut was still there holding and siezed to the clamp, and theres so little left i cant get a socket around it.

i guess its time to take it to the shop to have it done. i thought about cutting the clamp and buying a new one, but i looked up the part number and it says its part of the exhaust package. i dont know exactly what size clamp to buy and exactly what kind, or who would carry it. if anyone else knows it would help a bunch.

also, to you guys who have welded your exhaust up, do you typically weld the connection at the y-pipe/catback, or do you leave that clamped just like it is stock?

brad8266

iTrader: (23)

what exhaust are you installing?

Loochy88

iTrader: (2)

hooker 3 inch

brad8266

iTrader: (23)

Ok, hooker headers and Y pipe or what?

Loochy88

iTrader: (2)

just the catback.

bene

iTrader: (16)

I got mine welded...

lsx24

iTrader: (45)

Most of the time it's welded, but you can request a flange be put in as an option, since the stock ypipe is 2.5" I believe and most catbacks ipipe are 3"? If they are the same size you can use any type of band clamps.

FU_I_AM_UltraZ

iTrader: (20)

yes, the stock chamber pipe is 2.5 inch and most aftermarket chamber pipe are 3inch.
when i did my catback... the heat sometimes weld that nut to the pipe clamp.. i had to get someone to torch it off for me.