Ferrari 348 Gas Analyzer results

Hi all

I've been having an unusual judder/vibration problem with my car at low rpm and so I decided to use a gas analyzer to see how the car was behaving. What I found was a big different between the two banks. I've posted pictures of the two readings, these were at idle with the engine warm. Would appreciate it if someone could help me understand the readings. I have removed the CATs in my car and replaced them with straight through pipes.



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That's pretty cool, but I'm not familiar with it personally. How/where are the probes sensing the gasses?

 

where did you measure?

 

Looking at the user manual it appears to be a tailpipe analyzer. Which, for most 348 exhaust systems (2 into 1 with 2 outlets), it won't give a left vs. right comparison.

https://interequip.com.au/wp-content/uploads/2017/05/NGA-6000_MANUAL_ENG.pdf

 

Exactly you will just find the side with more blowback

 

Thank you gentleman. My car has some bespoke exhaust system on it, nothing like I've every seen before. Will take a picture of it and post later. It'll check to see if this is a 2 into 1 into 2 pipe or separate.

 

This is my exhaust. Looks like something created by origami!

I can see that the two sides of the exhaust are actually linked so I don't think the left versus right bank gas analysis can work. Will need to redo it after removing the exhaust. I think I need to replace this exhaust as the design seems all wrong.

What is the stock exhaust like? Does it sound good?

 

Give someone an A for... Artistry.

That's an awesome set of cans.

But seriously, I like the single can OEM exhaust, and it sounds great to me.

 

Interesting exhaust

 

Those gas numbers don't look good....something is off. Best to have it checked out asap

 

Actually, the more I think about it, the more those numbers look pretty good. Just drive it.