So to get Stage 1+ I need a new tune from APR?
Also I've heard that adding a DP without a stage 2 tune could through an engine light?
Don't get hung up on all this 'Stage' business. The car will run fine on the current map with a Loba pump and intake. Call it whatever stage you want.
Decide your goal. Is it full bolt-ons, so intake, pump, exhaust and intercooler with a map to suit? Or something else?
If you're looking to change the standard downpipe to a 3" one with either a decat or sport cat, then yes, you might get a light on the dash. But this is only because the ECU is expecting lambda values in line with a standard downpipe. It doesn't mean there is actually a fault. Any decent Stage 2 map will stop the light coming on.
Do all the hardware, then the map.
This is exactly the info I was looking for, thanks!
I do want to go full boltons and stage 2 but just don't have the cash to do it all right away. I just didn't want to risk damaging the car by running bolt ons for stage 2 while I was on stage 1.
Nah there'll be no damage. You might not even get a light on the dash if you're lucky, but they do usually come on eventually.
Just have a read up on the available intakes before you get one. None are perfect, they all seem to have their own particular compromises in terms of being a good fit. I'm considering going back to the standard airbox/engine cover as the Ramair I have fitted has a few 'quirks' that are sometimes a pain to live with.
In terms of bang for buck, and therefore the ideal order to upgrade things:
3" downpipe with decat/sport cat. Ideally as part of a full exhaust upgrade (ie the catback section is changed as well as the downpipe), but the main restriction is in the downpipe and cats, so that's the main thing.
Uprated pump. Can't go wrong with Loba.
Intercooler. Alloy ended S3 is good for a 2+ k04 car, but if you're wanting a tiny bit more potential power then there are replacements from the likes of Peron, Wagner and Airtec.
Intake. A bit marmite. They'll give the top end a bit more, but as I mentioned, with a few compromises. Arguably not essential for a 2+ k04 car.
