Cs racing exhaust gurgles and pops on deceleration

[ninjaridaz]

Is that ok? What's the reason for it? Bought it like that. Do I need to get it fixed!

[RobZ900]

Need to block the AIS. Either a plug in the hose or block off plates under the airbox.

[3alfa3]

It is because of fresh air that is "pumped" into exhaust for emission purposes, and to prevent catalytic converter clogging and burning (usually only below 3500-4000rpm). It is normal.

If you dont have catalytic converter, you could block AIS as described above.

[ninjaridaz]

 

[Marcel]

     Just enjoy it, a lot of people pay good money for that.

[FoxProZ]

I bought a used Z with Firetong exhaust and it was running so fat, popping on downshift blips, overrun, etc. Super obnoxious.

So I made some block off plates out ABS and took the whole AIS system out and sealed the airbox off.

It helps a lot with the issue no matter how you get it done.

[Aussiedrew]

I found the pops annoying so plugged the AIS pipe from the airbox. Then I missed the pops so I installed a sprinker valve inline with the AIS pipe so I can AIS on/off/half on to my hearts desire. Made a thread about it couple of weeks ago in the modifications section.

[3alfa3]

Originally Posted by Aussiedrew

I found the pops annoying so plugged the AIS pipe from the airbox. Then I missed the pops so I installed a sprinker valve inline with the AIS pipe so I can AIS on/off/half on to my hearts desire. Made a thread about it couple of weeks ago in the modifications section.

I hope you don't have catalytic converter, because, AIS is needed for it or else you will have clogged/burned catalytic converter.