DP with no tune

[parso_rex]

that's like saying all mods are useless unless you get a tune, which we all know isn't correct.

theres only 1 way to find out. ill let you know when I do my DP before the tune

We put one of these dump pipes on Zbeasts car with the stock file and it made less than one kW difference at the peak, yes if you did this on a Jap car it would be a different story but I'm sorry this is just how it is.................

[zei20t]

weird that the DP wouldn't make a difference. even I noticed the intake power delivery difference.

anyway, no point arguing about difference viewpoints

[Allegiance]

It will be OK but avoid the spacer if possible unless you are planning on just leaving it like this as I find the ECU doesn't like this at all for a few reasons, I'd just wait till you get it tuned properly or at least be prepared to remove it when it gets tuned
You will not make any more power than you did before until the ECU has time to adapt and even then its going to be minimal

Why's this? I didn't think it made a difference with the spacer, it just avoided the CEL? Or does it affect the readings from the ECU?

[shinygti]

These car are very touchy they try keep things running as the file request in the tune so unless you change the requested parameters in the tune you will have very little to no change in any mods. Japan cars are very different they react to any mods very well without retuning all the time. Parso is very correct in his advice.

[Lucas_R]

Ive still got my o2 spacer fitted to my dump pipe even though my car is tuned - car runs perfect. Ive just left it fitted incase i need to flash back to stage 1 or stock tune anytime, i dont need to worry about getting a CEL.

My mates GTI also runs day in day out with the o2 spacer fitted to his dump pipe.

[parso_rex]

Why's this? I didn't think it made a difference with the spacer, it just avoided the CEL? Or does it affect the readings from the ECU?

Yes it affects the ECU, initially I didn't think it did but a couple of cars that I have seen recently have proved otherwise. I did also see one with a spacer on the front sensor

[shinygti]

Yes it affects the ECU, initially I didn't think it did but a couple of cars that I have seen recently have proved otherwise. I did also see one with a spacer on the front sensor

On the front sensor ...... well that's looking for trouble!