gumbyy wrote:I've read an old post of yours saying ur 2.5T + DP - after a year without a tune - is running fine, just wondering if thats the case with the 2.0T?
Hope Phil doesn't mind if I jump in. But Norm (libsti) has been running the HKS dump pipe for quite a few months now without a tune. I know of a few other 2.0t owners who have gone without an immediate tune. The stock ECU is actually quite resilient and should be able to adjust to the new dump pipe. Your car won't be the most efficient during this time, but it's not going to blow up or anything.
I'm pretty much deciding whether the DP is worth getting or not.. are gains noticeable on a pretty much stock car
It's not so much the gains, because that will be minimal. It's the quicker spool of the turbo that you will react to. Instead of the normal delay when you stomp on the gas, the turbo spools up and kicks in quicker. You'll be like "Whoa!" I think that was everyone's reaction after their first drive upon getting a dump pipe.
Will it make the car much louder with the phat mufflers?
There will be a bit more noise inside the cabin resonated from the dump pipe area. But overall I found it made the exhaust tone deeper. A tad bit louder yes, but deeper. Go to the exhaust clips post and you can compare the before and afters.