I was due for rear tires on the tt. Called in my order to my local tire shop and asked for a set of the stock Pirelli's. ( P zero assymetro )I had them mounted and was distracted as I was leaving ( dang cell phones !!). So I get home and reaize that I now have a pair of P Zero Rosso on the rear and and a set of P Zero Assymetro's on the front. GRRRRRR. I had done about 20 miles of hghway to get home. I was on a road that has been heavily grooved and the wind was blowing like crazy. It seemed that I had a good bit of trammeling going on. After I got home and realized I had different Pirrelli's front and rear , I am now thinking I should call and ask them to reorder the rears to have a matching set front and rear. On the plus side, the new rears sure did quiet down the truck like sound and ride I had been experiencing for the last month. So, should I be concerned about running this combo on a street driven only car?

 

I don't know about the different tires but if the front ones are the oem tires you need to check the tread and sidewalls inside to be sure they are not cracked. My 01 had bad cracks on the inside sidewalls but the outside looked good.

 

I had a very long drawn out PITA with a set of Dunlop’s. The tires that I changed out were a previous generation (different number of ply’s).Handled like crap even after changing to another set of rear tires and an alignment at the dealer. These tires were the same brand, model, thread pattern, size. The only difference was the number of ply’s. Tire dealer and Dunlop never thought of it. After I had the second set of rear tires and a very pointed conversation with the mfg, I changed brands and the problem went away. That was not apparent until I was exploring every last detail.
The tire mfg paid out for two new sets of tires after I got a hold of the Customer Service National Manager and bitched at him about the way the whole ordeal was handled.

Moral of the story, never mix brands, model, and tire construction (ply) on a Porsche. By tires with an N1, N2, N3 series that is designed with the help with Porsche.

 

I drove the car again tonight and it just does not feel right,, Not bad,, but not right. I know these cars are sensitive to tires , pressures, brands, etc,, I am going to call and request they get the tires I ordered and get the exact match for the fronts, I know all will be well then.

 

I have two words for you: Michelin PS2!

 

Better yet Yoko Neovas.

 

+1 Great tire!

 

thanks for the advice on the Yoko's. It takes that whole 2 rear tire cycle thing before I want to switch brands, but yes, this is my last set of Pirelli's for a while. I want to try something different. On a plus note, Discount Tire, did the right thing and ordered 2 new rears to match the fronts, as they should have. It was nice to have them just admit a mistake and take care of it for me.