Tuner Question (Headers)

[Doctor Fishtail]

Installing headers and do not have a tune for it. I thought I read here that it was not an issue driving car without a tune for headers.

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[plc268]

I drove mine for about a month with no tune. You'll likely get a CEL, even if you have high flow cats. If you have the Kooks green cats, you should be spared the CEL.

But yea, it'll drive just fine.

 

[Gibbo205]

Hi there

I have a JDM tune on my car which just had drop in filter corsa sport catback.

Can I just fit headers with high-flow cats and still drive the car too?

 

[Doctor Fishtail]

I drove mine for about a month with no tune. You'll likely get a CEL, even if you have high flow cats. If you have the Kooks green cats, you should be spared the CEL.

But yea, it'll drive just fine.

Thank you.

 

[beefcake]

Headers the car will be fine. But you'll probably get a check engine light. If you can live with that you don't need a tune. But a tune would definitely wake the car up

 

[Terminator2]

Headers the car will be fine. But you'll probably get a check engine light. If you can live with that you don't need a tune. But a tune would definitely wake the car up

This. I already turned my rear O2s off in preparation for my long tubes I just need to adjust my O2 transport delay for the wideband O2s being placed further downstream.

 

[Doctor Fishtail]

This. I already turned my rear O2s off in preparation for my long tubes I just need to adjust my O2 transport delay for the wideband O2s being placed further downstream.

Mine are turned off as well. Definitely lost low end torque but really gained mid range torque. To get tires to spin before headers took more gas pedal. Now much easier. Not sure what the TQ gain is but it is noticeable.

 

[Terminator2]

Mine are turned off as well. Definitely lost low end torque but really gained mid range torque. To get tires to spin before headers took more gas pedal. Now much easier. Not sure what the TQ gain is but it is noticeable.

Usually 25ft/lbs around 3000-3500. About 15-17 whp gains roughly.

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