I bought new billet diverters but the vacuum hose connection is larger and the smaller factory hose doesn't fit on it. I followed the hose back to the t in the engine compartment. At the t it's a larger connection to two small ones. Can I replace the t with the same size on all three sides and replace the two hoses. Or can I use an enlarger near the diverters. What's the recommendation for this.

 

I would say this one is from China! If I were you I wouldn't even try and drive with it. Because If you are on a road trip and thing brakes up, you are in trouble!

 

Really? Bugger was a Canadian seller. I unscrewed it and checked all the parts. It seemed pretty solid. What would let go?

 

I saw at few places that top of valve gets torn apart due to bad quality of plastic, velding parts, etc (see pic down below)... Overall that part is NOT genuine, so DON'T put it on your car. I have changed both diverter valves on my var few weeks ago my self, and bought OEM parts for my car, but NOT Porsche, Audi RS diverter part (It can be used on numerous engines) and it is far better now than old ones. Now, turbo pressure is stuck at 0.8 bar on full throttle and stays there will it is floored. Also much better turbo spool up and overall response.

So buy these ones (I bought these) https://www.ecstuning.com/b-genuine-...ve/06a145710p/

And spare yourself of worries at start and future

 

Even though they are aluminum ones that are screwed together? I had bought the Swedish ones and one blew apart. Limped it home and had to put a factory one back in. Are the Keiser ones any good? Here's the one I bought that shattered,

https://www.ebay.ca/itm/Made-in-Germ...53.m1438.l2649

 

I am very pleased with these ones I bought.

I saw those ALU, but not interested in those. Since I will not drive this car for 10 more years, so I don't care about longevity. Also I saw these ones 710P on Stage 3 Cayenne Turbo S

 

I'm pulling .8 bar with one factory and one of those Swedish diverters on a Softronic tune. I know it can pull more.

 

It can pull more but how more depends on modifications you made or you are going to. These ones I have read about max pressure, I think around 1.2-1.4 bar if I am not mistaken.

I am preparing my TTS for Stage 2. I think I will do the Chip Tuning after New Year.

 

I did the Softronic tune. I changed the diverters but one blew. I changed the N75 and a bypass valve. Put in K&N filters. Opened up the muffler. Haven't done the cat bypass yet. That probably will be next.