POST 1 / ORIGINAL POSTEROriginal post
I have a choice of buying Pirelli n3s or n4's, is there any difference? Also these tires are for the rear, is there any place on the front tires( replaced recently) if I can see if they are 3's or 4's?
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YOUR RESEARCHPirelli n3 and n4?
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POST 2Original post
N spec is N spec and across brands you CANNOT compare N spec numbers. But, if you are within a specific tire and ALL things are equal (size and brand) then go with the higher number since if you were to encounter an N3 and N4 of a specific tire then the N3 would be the tire that was superceded. Hence, the N4 is the newest iteration of the tire from that manufacturer.
POST 3 / ORIGINAL POSTEROriginal post
Thanks, going for the 4's then.
POST 4Original post
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POST 5Original post
One more thing..... this is from a good N-Spec article that Tire Rack has ( http://www.tirerack.com/tires/tirete....jsp?techid=26 ) : Production tires that have passed all of the tests and received the engineering department's release can be branded with an N-specification. The N-specification brandings include: N-0 (N-zero), N-1, N-2, N-3 or N-4. These markings on a tire's sidewall clearly identify them as approved by Porsche for their vehicles. The N-0 marking is assigned to the first approved version of a tire design. As that design is refined externally or internally, the later significant evolutions will result in a new generation of the tire to be branded with N-1, N-2, N-3, etc., in succession. When a completely new tire design is approved, it receives the N-0 branding and the succession begins again.
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