They are equal length, I measured and longer collectors, and the tubing is slightly larger too. My friend just got the PPE/RR Racing ones and we compared side by side. I have Not installed yet and hoping I don't have a fitment issue myself. You do need 02 wire extenders that do not come with them. They also came with some kinda composite ring Gaskets but I bought the Lexus Factory ones to use instead.

I need to Ceramic Can paint and Wrap them before I install. The inside weld aren't bad, in fact better than my friends but I do plan to grind inside slightly to clean up a bit for flow before I install. Every little improvement helps towards hp.

 

Are these the same as the OBX brand headers? Hopefully the fit and function is up to standards as this would be
a cheaper alternative to PPE...

Really surprised and sorry to see the OP having such trouble with the PPE since they are supposed to be the
gold standard for headers for this platform.

 

Everything has gone to hell since the Pandemic. Quality has gone down while price has gone up. From restaurants to PPE headers...

 

While checking PPE Engineering YT channel stumbled with this post from an unknown user with no reply from the company, the exact same issue as mine, O2 sensor resting on the transmission cooler.

Below are pics from my car-


O2 resting on the cooler, and that is without tightening the bolts. The more I tried the worst the sensor dug in.

It was not much, missed clearance by a little.

I lowered some of the bung neck. I wish I had a lathe, could have been done in minutes. That is solid steel, ate about six or seven metal discs.

It was not enough the amount cut out, the more I kept tightening the worst the sensor crunched in... that is as far as my efforts go.
- - - - - -

At least in my case communication has been excellent with PPE Engineering, Paul is very reasonable and does not try to hustle out of the issue like its partner distributor. Not going into the details, all I can say he is trying to make things right.

 

Hey bro did you ever manage to get the space for the O2 sensor I am also having the same clearance issue but I don’t know what to do about it

 

Can you enable IM or provide email?

After some modification I manage to make it work.

 

can you email me arnulfolira5@gmail.com i will appreciate it if you can show me or tell me the modifications you did to your sensor to solve this issue thanks

 

Curious about this and wondering if these were isolated incidents or if it’s an on going issue.

 

I have had a few users who reach out to me asking about how the O2 issue was solved. I highly recommend to work it out with PPE customer support and bypass RR at all cost.
The tech from PPE explained a little about logistics, they are in different locations, and for a while had these headers made by this welder who messed them up. They know about the issue, I would give them a call and double check you are getting a good header NOT with the O2 QC problem. I snapped a few photos, sent them to him and he did confirm it was one of the defective ones.

Took about three different shops until one of them finally agreed to do the job.
The owner of the shop did it himself, made me sign a form that if it got messed up he was not liable as this was something he had never done before.

I did a paint sketch to explain what he did. He cut a rectangle (red area) where the O2 sensor is, flipped it so the O2 mount would be about an inch more toward the rear, closer to the exhaust flange connecting the secondary cats. The modification worked, it cleared the O2 sensor from hitting the transmission cooler.

The O2 readings are the same on both sides, no leaks, car runs and sounds amazing. I highly recommend the PPE headers, the bad thing it is a temptation to press on the gas more often than not just to hear the exhaust notes.

I can possibly measure how far from the flange the O2 mount needs to be, is a tight fit, just be aware that if you take it to a shop, you may get billed twice as if it is a bad batch header they will have to unmount and remount, and the car could be at the shop for a while. So I would advice to start working on them with the passenger side in case it does hit the cooler and have a plan where to take it if that is the case.

*buy them with ceramic coating! Engine bay is way much cooler than before.

 

Why not cut and weld a new bung in and move on? I added an O2 data logger to my street bike for $5 and a six pack. I did drill the hole myself in the SS collector.

The bung adapter to o2 sensor is cheap as are the plugs. JM2C but I'd take that over cutting and patching a slab of collector. No one looks at bung holes to closely!

 

It looks super clean, no extra bung or bung caps. Before installing the header back I took it to another shop to hear their opinion. They were able to tell when they saw the welds from the inside of the pipe.
It was also a very close call to cut and weld beside the other one, The illustrations is for presentation purposes, but in reality there is not too much space.

I had an extra bung to use and he thought about that, but we both agreed to keep the header look factory and not a patch over job. It is a tight fit, the welder was concerned that he might get the angle wrong if he worked putting another bung, so he decided to keep the original orientation. Seriously, it cleared the cooler by maybe a little more than a 1/4 of an inch. It was to keep a clean look, there is no way of telling unless the minor left over welds from inside. Muffler shops have worked underneath and they notice the headers, I tell them of the bung relocation, and I have to pin point where, they are impressed how clean it looks and some admit they could not have done it same or better than him.
But I know what you mean, could have cut, weld and done. And yes, imo, it is a lingering issue of PPE headers still floating around in their inventory.

 

I'm guessing factory warranty goes out the window once PPE headers are modified? Not that that matters, but good job anyway!

 

Not to overspam IS-threads, but here is a few pictures of the work done.
Warranty did not go out the window. PPE will work with you on a case by case basis. They understand and are aware of some of the weld defects.
Overall PPE is a great company, the header material is excellent, I get complement from muffler shops and mechanics who have seen the headers.
And above all, PPE deliver excellent customer support as long as one is patient and always maintain a respectful attitude.