Will I need a retune?

[FuelSlut]

Seriously thinking about doing a QTP electronic exhaust. Or another brand, anyone on here know wich is best to get? And most important will I need a retune or not.

I shouldnt need one but I just wanna be sure and on the safe side.

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[doug@performance]

I would atleast get it on the dyno and make a pull or two to check air/fuel. We did a QTP kit on a Vortech powered 05 and with the dumps open it made the tune a LITTLE lean, Nothing crazy but worth checking to be safe.

Thanks
Doug

 

[FuelSlut]

I would atleast get it on the dyno and make a pull or two to check air/fuel. We did a QTP kit on a Vortech powered 05 and with the dumps open it made the tune a LITTLE lean, Nothing crazy but worth checking to be safe.

Thanks
Doug

So then how does it work? Say Im on the street on a closed butterfly valve and I want to open it, and I have another tune in my x2 specifically for open valve what am I suppose to do pull over and download it in my ecu? This is not what i wanna do. I want to be able to open it and close it as I please if you know what I mean.

 

[Boost12]

I would not bother retuning for a Cut out. Its a waste of time and money IMO. Ive seen countless cars open the Cut out before a race and they ran just fine.

 

[Bigturbonotch]

you will be fine.

 

[Bob_Kurgan]

no retune needed