Turn off Active exhaust CEL

[Unholy707]

Exhaust is being removed for the track midpipes back. I'm assuming this will set a check engine light. Can the active exhaust valve trouble codes be disabled? Yes, I'm tuned. Thanks!

 

[zhc]

Exhaust is being removed for the track midpipes back. I'm assuming this will set a check engine light. Can the active exhaust valve trouble codes be disabled? Yes, I'm tuned. Thanks!

Yes

 

[Unholy707]

Yes

Awesome, thanks Z!

 

[Wizza]

ZAutomotive inactive exhaust plugs will do the trick....run them on mine for years now after I cut out the flapper valves completely

 

[Unholy707]

CELs turned off and made my own plugs out of the same connectors for $5 to keep water out of the connectors in the factory harness

 

[zhc]

When removing exhaust from mid pipes back for racing, make sure you put turn downs on the end of the mid pipes or the exhaust will blast away all your insulation in the tunnel as well as put a lot of heat into the driveshaft.

Also make sure the turn downs are on there securely somehow. I and many who tried clamping them on find that they can easily fall off going down the track.

Having a 2nd set of mid pipes with turn downs welded on would be my recommendation as an easy sure way of making sure you don’t experience all these things that I and many others embarrassingly had to find out for ourselves.

At one point I made custom vband connections where I could swap between no exhaust with turn downs versus factory full exhaust but that takes a little more work and planning to do.

 

[Unholy707]

Thanks for the heads up and the info as always Z.
These are the ones I got. Maybe I'll try to put some safety wire around them or something. Good to know they're not really secure

 

[zhc]

Yea, the story repeats itself quite often. I don't think a lot of folks share or talk about it because it's embarassing.

Clamp those on, make a couple passes, one or both fall off halfway down the track.

Then proceed to make more passes thinking, what can it hurt? Now you're blowing insulation material all over the track, lol.

Then maybe you decide to clamp that clamp down as tight as you can get it. Later when you get home, you find your factory exhaust won't slide on or seal anymore to the mid pipes since you crushed them pretty bad, so you have to get another new set of mid pipes to replace them. If you make it this far, at least now you have an old set of mid pipes you can weld some turn downs on. You can make them shorter too for a little more weight reduction at this point, like on the drag pak's.

 

[Unholy707]

I know it will be a pain to get off, but I wonder if a small bead of copper rtv would help keep it on and bond to both surfaces. I used rtv on cometic intake gaskets for a 4.5 before that wouldn't seal. Needed to use a pry bar to get the manifold unstuck from the heads after removing the head unit. But I guess then I'd also have that same issue (difficulty removing the turndowns)