Y pipe replacement question
Thread Starter
Racer
Joined: May 2013
Posts: 357
Likes: 15
From: Marshville, NC
Y pipe replacement question
I just had my main cat replaced with the Magnaflow direct fit replacement on my 87 coupe.
I want to eliminate the precats by installing a new front y pipe. I can't tell by the pics offered by the manufactures if the front catless y pipe has the oxygen sensor bung in place. Anyone replaced their front catless y pipe and had the sensor bung already installed? If so who did you purchase from?
Thanks all....
I want to eliminate the precats by installing a new front y pipe. I can't tell by the pics offered by the manufactures if the front catless y pipe has the oxygen sensor bung in place. Anyone replaced their front catless y pipe and had the sensor bung already installed? If so who did you purchase from?
Thanks all....
Race Director
Joined: Apr 2002
Posts: 10,036
Likes: 346
From: Anaheim CA
Since all Corvettes have O2 sensors I would think the Y pipes would have to have them also.
When I replaced my front Y pipe I had a second bung welded into the passenger side for a wideband O2 sensor.
When I replaced my front Y pipe I had a second bung welded into the passenger side for a wideband O2 sensor.
Thread Starter
Racer
Joined: May 2013
Posts: 357
Likes: 15
From: Marshville, NC
Team Owner
Joined: Dec 1999
Posts: 34,873
Likes: 487
From: Lacey WA RVN 68-69
NCM Sinkhole Donor
If the current pipe is in good condition, just cut the pre-cats out and weld in sections of exhaust pipe. That way you don't have to deal with a replacement O2 bung or deal with rusted nuts and studs where the current pipes attach to the exhaust manifolds.
