Cat Bypass off my 1980 911sc

[911mnypt]

I went to install my cat bypass the other day and discovered, once I jackhammered my bolts off, that my catalytic converter was hollowed out. Since I live in the smog happy state of California I will leave the old cat on and sell the bypass pipe. Anyone interested?

[germaniac]

Do you still have the Bypass pipe? What were you looking to get? Truly, how much hp increase do you think guys see form this? I have heard from 5-10....I am just curious. If it is for sale, how much shipped tom 33487?

Thanks,

Rob

[rnln]

If Rob pass... I am second.
PM

[Danny_Ocean]

The original post is from 8/07. You may want to PM the OP.

[rnln]

oh... thanks Danny :lol:
PM sent

[wgirardot]

Originally Posted by 911mnypt

I went to install my cat bypass the other day and discovered, once I jackhammered my bolts off, that my catalytic converter was hollowed out. Since I live in the smog happy state of California I will leave the old cat on and sell the bypass pipe. Anyone interested?

How much louder will my car be with the cat bypass? I have an '82 SC

thanks in advance,


Bill

[mike monde]

Bill,
I did this about a year ago and you will have a louder sound. IMO the car sounds better but not too loud, just a little louder then with the cat.
As far as the HP claims, can't say it picked up any but it sounds faster

[wgirardot]

Originally Posted by mike monde

Bill,
I did this about a year ago and you will have a louder sound. IMO the car sounds better but not too loud, just a little louder then with the cat.
As far as the HP claims, can't say it picked up any but it sounds faster

thanks for the input, I appreciate it

Bill

[911st]

Dose that one have an O2 port?

If not, it is for up through 79 SC's.

80-89 SC's and Carrera's need on O2.

[tcar]

An O2 port would be on the top, and there is not one (we're looking at the top).

A muffler shop could probably weld one in, though.

[Deschodt]

Isn't that funny how you passed smog all those years without a CAT ? My car was the same, I found out after leaving Calif, but I passed year after year and my cat was hollow ;-)
Makes you wonder...

[Zef]

Originally Posted by germaniac

Do you still have the Bypass pipe? What were you looking to get? Truly, how much hp increase do you think guys see form this? I have heard from 5-10....I am just curious. If it is for sale, how much shipped tom 33487?

Thanks,

Rob

If you want a real HP increase, you have to install it along with a custom performance chip (SW)

[Zef]

Sorry...Double post.