New Y pipe for new headers?

[MisterM]

About to order an edlebrock cam and lifter set so of course I'm going to need some new headers. Also shipping in a high flow cat because still have to pass emissions.

I was just wondering if I needed a new Y pipe. I've been hearing that with new headers alot of people have problems with emissions or the truck even not running properly due to o2 sensors or other issues.

Anyone have complications like this before?

 

[MisterM]

I was told if you get a new y pipe it usually corrects most emission/ o2 sensor issues, is this true? And if so, why?

 

[98_k1500]

What type of headers are you going to be running?

 

[95chev]

I was told if you get a new y pipe it usually corrects most emission/ o2 sensor issues, is this true? And if so, why?

Your truck is a 95 so the only o2 sensor on it is right before the cat in the y pipe, if you are not pulling that sensor out but just replacing the headers and cat you should be fine

 

[MisterM]

What type of headers are you going to be running?

I'm still looking around but I'm leaning towards some Gibson 120 tuned shortys (around $350). If anyone else has good some good suggestions it'd be appreciated.

 

[MisterM]

Your truck is a 95 so the only o2 sensor on it is right before the cat in the y pipe, if you are not pulling that sensor out but just replacing the headers and cat you should be fine

Are you sure? I've been reading thread upon thread about how people install new headers and there truck starts to run like . Most seem to be resolved by a y pipe or a specific type of sensor.

 

[98_k1500]

The short tubes will work fine. If you are gonna re-work your y pipe anyway, why not run long tubes?

 

[cjman250]

Are you sure? I've been reading thread upon thread about how people install new headers and there truck starts to run like . Most seem to be resolved by a y pipe or a specific type of sensor.

you should get a cut out to house the o2 sensor in the new y pipe right after the headers, which will help with the engine running bad.

 

[95chev]

Are you sure? I've been reading thread upon thread about how people install new headers and there truck starts to run like . Most seem to be resolved by a y pipe or a specific type of sensor.

Thats how mine is, just the one o2 sensor

 

[MisterM]

Just took a look and 95 chev you're right, there's just one o2 sensor right before the cat, and if I replaced the cat and headers I don't think it would effect it. I'm going to do some more research online though because I know in the past I've read "y pipe will solve most problems" when installing new headers.

And I don't think I can install long tube headers because the gas tank is on one side of the truck. I'm pretty sure I'm going to have to go with the shortys