Catless downpipe without tune?

[Fk8tjt]

Is it bad to run catless dp without tune? Thxs

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[hobby-man]

It won't break anything but you'll most likely have a constant CEL unless you get lucky with a spacer/defouler. I'd be paranoid and pulling the codes frequently to make sure there isn't another issue causing a CEL that you're ignoring assuming its the P0420.

 

[Night Fury]

As hardware only, you have to constantly clear the code if your spacer doesn’t do the trick. To me, that’s annoying.
If you are running in budget, just save money for a tune.

 

[CincyTypeR]

Also keep in mind that the ECU uses a torque target tables. You probably won't see any performance gained just by doing the catless dp. All you would be doing is adding noise and pollutants/smog to the air.

 

[FK8_K20c1]

Also keep in mind that the ECU uses a torque target tables. You probably won't see any performance gained just by doing the catless dp. All you would be doing is adding noise and pollutants/smog to the air.

Incorrect information. A catless dp on the Type R will give you faster spooling and more power than any intake or catback

 

[CincyTypeR]

Incorrect information. A catless dp on the Type R will give you faster spooling and more power than any intake or catback

Always seem to be surprised by the lack of tactfulness on theses boards but keep telling myself I shouldn't.

From my experience I didn't get the full potential of a DP until after I flashed my ECU with a basemap. Now was it a combination of the two or primarily using something like Hondata or Ktuner? I can't be for certain and this is all based off the butt dyno. Think everyone can agree that the first performance mod should be to have the ECU jailbroken and flashed.

 

[FK8_K20c1]

Always seem to be surprised by the lack of tactfulness on theses boards but keep telling myself I shouldn't.

From my experience I didn't get the full potential of a DP until after I flashed my ECU with a basemap. Now was it a combination of the two or primarily using something like Hondata or Ktuner? I can't be for certain and this is all based off the butt dyno. Think everyone can agree that the first performance mod should be to have the ECU jailbroken and flashed.

Sorry If my approach didn’t sound friendly I’m not trying to be a douche. I agree you wont get the full benefit of the downpipe. But the difference can be felt.

 

[That.grey.si]

Also keep in mind that the ECU uses a torque target tables. You probably won't see any performance gained just by doing the catless dp. All you would be doing is adding noise and pollutants/smog to the air.

Ur wrong

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