[TT3 iN NyC]

Just read on forged DV website that blue > yellow > green. Can someone confirm?

On the website, they also have a set of red springs which they claim to be the strongest of all. Ok to run red?

[georgelb]

I had a surging like that while cruising at a constant speed and it ended up being a small vacuum leak in both of the hoses behind the oil filter. I messed with the DV springs forever before figuring that out. If you've never changed them it's worth a look on an '07.

Originally Posted by TT3 iN NyC

Just read on forged DV website that blue > yellow > green. Can someone confirm?

On the website, they also have a set of red springs which they claim to be the strongest of all. Ok to run red?

Correct, but you should be fine with yellow; I really don't think you'd want to run red if they're stiffer than blue.

[TT3 iN NyC]

Originally Posted by georgelb

I had a surging like that while cruising at a constant speed and it ended up being a small vacuum leak in both of the hoses behind the oil filter. I messed with the DV springs forever before figuring that out. If you've never changed them it's worth a look on an '07.

Correct, but you should be fine with yellow; I really don't think you'd want to run red if they're stiffer than blue.

Thanks George! Will take a look this week. Hopefully the rain dies down here in NYC in the next day or 2.

Do you know which hoses they are or part number?

[georgelb]

You can see which ones in the thread below; I just stopped by the local auto parts store and got a couple feet of bulk vacuum hose from them.

http://www.e90post.com/forums/showthread.php?t=546560

[TT3 iN NyC]

Originally Posted by georgelb

You can see which ones in the thread below; I just stopped by the local auto parts store and got a couple feet of bulk vacuum hose from them.

http://www.e90post.com/forums/showthread.php?t=546560

Thanks! Much appreciated

[georgelb]

No problem; it's super easy/quick to do, so hopefully that's the issue.