dasquade wrote: ↑Tue Feb 20, 2018 10:48 pm
NGK R7437-9, APR recommands gapping them on 0.6mm - 0.024" (but mines came out of the box correctly gapped) like that).
Personally i recommand (everybody) to buy obdeleven (sadely android compatible only). It costs +-40-60€ and it is a phone app with obd bluetooth dongle.
It allowed you to scan your car, access modules, data log and even programming (some stuff are even 1 click pre programmed apps

).
Super handy and have it in the car always (scanning the car monthly). It almost should be a must imho.
*once had a broken turbo sensor, it didn't threw a display code or limp mode. Only felt the car weaker....a quick scan showed me it was the sensor. Simply stuff like that but otherwise you might of ignore for a good week or untill you finally figuer something is really odd and decide to go to the stealer.
Anyway, just saying, simply scanning the car can already tell you alot without putting a step in the dealers garage....
OEM plugs are normally good for 60.000km but since you tuned and stage 2, i would recommand reducing that too 30.000km and indeed maybe go for the NGK race plugs.
Well it depends, most tuners altough they say they 'custom tune' the car, most of the times they start with your current software and tune it based on that version. Big tuners like APR still kinda tune the cars on older software (if not mistaken), at least there is the famous cylinder 5 issue that is currrently beeing ironed out....from what i read and heard, the latest OEM software kinda adressed the misfiring issues.
No RS owner here and don't know about your tuner, if you are UK person i would recommand MRC

.
Anyway, good luck

.
PS: how is that eventuri intake doing?
Thanks for the NGK P/N. I picked up the car completely stock, but, in HK, we have a lot of stop and go and everything, so maybe that takes a toll on the Spark Plugs a bit more. Either way, they're not too expensive, and I'll get them done anyways. Hopefully if fixes the issue.
I actually have a little OBD Bluetooth Dongle, have to see if I can still find it. Know if I can use another Bluetooth Dongle with the OBDEleven? Not sure if mine was for iPhone or Android though, so maybe i'll just order a new one. Agreed, I've had this on my other cars, and it's been pretty good for me, so, probably worth it to pick one up that works with the RS6. Luckily, my
Shop doesn't charge me anything to scan and stuff, but, it is a hassle to have to swing by and get it all done.
I'm in Hong Kong, so unfortunately can't swing by MRC! Interesting. I assume the dealership will be the one to flash the OEM Software? Or, is that something that can be downloaded and flashed yourself? I used to have a E90 M3, and we could flash "OEM-Software" and stuff ourselves.
Oh, and on the Eventuri. I don't really have anything else to compare it to, since I installed the Eventuri and the HMS and Tune at the same time. However, my
Shop has done the same Simon Motorsports Stage 2 Tune and HMS Full Exhaust on another local C7 RS6 before, and, without a doubt, he says mine definitely faster. As for how much faster, I really can't comment on that. However, Eventuri does have a very good track record of actually making power gains on the Dyno, both by their own, and by independent Dynos on other vehicles, so, I'm inclined to believe their numbers. I believe they quote around a 20-30HP increase, which, I definitely could see.
Is it worth the money for it? Not too sure for others, but, it looks great, and I'm very happy with it, so, worth it to me!
I'll see if I can find that other RS6 that has the HMS/SMS Stage 2, and run him, to see.
For anybody else interested, I also had Simon Motorsports tune my TCU (Transmission), and, I can tell, 100%, that it made a better difference. It no longer upshifts on redline if I'm in Dynamic, and, the shifts are firmer and shift faster, and, I used to notice at low speed, it wasn't the smoothest thing, maybe had some speeds where it was slightly jerky, but this definitely improved all of that. Well worth it IMO!