Reply With Quotedon't leave it too long, I believe (but only heard) that with the CEL on the car will overfuel and possibly destroy your new cat. if youre not going to run a cat, don't stress too much.
that said, its best to get a tune as soon as you possibly can.
Volkswagen Enthusiast
So I'm getting the Turbo XS downpipe this week, however my car isn't tuned, will this be an issue? Don't want issues with the engine or flow issues. I know I won't get any performance increase without a tune, just looking for sound at the moment.
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2020 VW Golf R
Volkswagen Fanatic
don't leave it too long, I believe (but only heard) that with the CEL on the car will overfuel and possibly destroy your new cat. if youre not going to run a cat, don't stress too much.
that said, its best to get a tune as soon as you possibly can.
Volkswagen Enthusiast
I will be using the 02 sensor spacer from Dub Addictions as well...
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2020 VW Golf R
Dub Crazy
I don't believe you will have any issues running the dp minus tune, just won't get the benefits (as acknowledged). If the O2 sensor does its job you should avoid the CEL as well. However happy to defer to a more knowledgable authority..Originally Posted by Allegiance
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Volkswagen Fan
You can run it but you are going to suck fuel so fast it's not funny I did it to my golf R and had to wait 2 weeks till I got the tune and was using a full tank of fuel in about 300 km plus it will have the cel light on
YAY I got my R!!!! White, recaro seats, 19" wheels, bluetooth, reverse camera
Volkswagen Enthusiast
You can do it no problems, but best to get a tune as soon as possible, car might run abit odd for awhile untill it gets a tune because the stock factory tune isn't set for a different DP etc etc. Plus don't see why you'd look at mods before even thinking about a tune, it's the first thing you should do...
E.G: Put a aftermarket system on a 08 Subaru GT Liberty, the thing ran like ass for a week before I got the tune, put the tune on it and it ran like a dream, 70L tank drained in 450kms without the tune...
Volkswagen Fan
With the way these ECU's work, there shouldn't be any issues as long as the post-cat O2 workaround is in fact working and not causing error codes (not all error codes result in CEL's).
The car should be able to spool a little more freely, even without a tune.
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Volkswagen Fanatic
its funny there are many different opinions with what happens when you change the DP.
coming from many turbo cars, it only increased the fun, even on the stock tune. im glad you have cleared it up for me, I also wont rush out to get a retune after changing my DP. ill do a few more mods to save on multiple tunes.
cheers!
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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
Volkswagen Fanatic
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
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