What is the difference between "Porsche Certified" and "non-Porsche Certified"?

Asked by Jan 25, 2009 at 03:51 PM about the 2008 Porsche Cayenne Turbo

Question type: Maintenance & Repair

Pirelli and Michelin are the tires companies Porsche uses for their cars....but they still need to be "certified" - what
does this mean?  I had 21" Summer tires; but COULDN'T get 21" winter tires (Pirellis) b/c they weren't certified.

Thanks

3 Answers

8,325

Haven't heard about this. Perhaps they don't meet load or speed rating requirements and the dealer or shop won't put them on because of this. I thought Porsche put Pirelli Scorpions on some of the Cayennes though and most of those are all weather tires. I'm not sure to be honest.

1 of 1 people found this helpful.
185

Porsche Certified means that Porsche would put recommend that you put them on your car. Non-certified means like they recommend that the performance of the tires won't be as good if you purchase the so called "certified" ones.

1 of 1 people found this helpful.
65

Porsche certified tires can be recognized by a N-code on the tire, this is the letter N followed by a number (N0, N1, N2 and so on). The N-codes are specifically for Porsche. It is not merely a certification, N-coded tires are truly different from the stock version of a particular tire. When a tires manufacturer comes out with a new tire that could be suitable for a Porsche, Porsche may incorporate it in its comprehensive tires testing program. During testing Porsche will work closely with the tire manufacturer to adjust the tires to Porsche specifications. These tweaks and modifications can include softer or harder rubber compounds, different side wall characteristics, and may even include slight deviations in circumference to match the front and rear tire diameters, this is especially important on the Carrera 4 models. Of course the deviations differ from tire to tire, so it is very hard to say what the exact difference is between a standard Michelin and the N-code Michelin in a specific size. A Porsche should be fitted with 4 tires of the same brand and type, with matching N-codes. It is not recommended to use N1 front tires and N2 rear tires. I have experienced that a Porsche feels entirely different when not fitted with correct or mismatched tires. We've also had customers complain about the handling of their Porsche only to find that the car had the wrong or mismatched tires on it. More on this: http://www.karrera.net/tires/N-Specification2006.pdf

2 of 2 people found this helpful.

Your Answer

Add photo

Related Questions

  • What is the difference between "Porsche Certified" and "non-Porsche Certified"? 3 answers

    Pirelli and Michelin are the tires companies Porsche uses for their cars....but they still need to be "certified" - what does this mean? I had 21" Summer tires; but COULDN'T get 21" winter tires (Pi...

    2008 Porsche Cayenne Turbo

    -

    Maintenance & Repair

  • Certified 3 answers

    Could you please let me know what "certified " means? if car is certified does it come with bumper to bumper warranty? For how long? Thank you

    2014 Porsche Cayenne

    -

    Maintenance & Repair

  • My Porsche Cayenne S 2004 1 answer

    My Porsche Cayenne won't accerlate after cranking it up ! What could it be? If anyone has any answers feel free to reply to this post

    Porsche Cayenne

    -

    Maintenance & Repair

  • how many quarts of oil in the 2005 Porsche cayenne 1 answer

    I have a 2005 CAYENNE it sat for 3 years and now when I start it, it has a tapping sound sound like it may be a lifter noise? what should I do to quiet that down?

    2005 Porsche Cayenne S

    -

    Maintenance & Repair

  • Severe problems and poor handling by Porsche. Cayenne S 2008 9 answers

    Hi all, thought you should know. Below is a copy of 2 emails (of a chain of many) sent to Porsche HQ: Dear all, It has been almost 2 months since I first contacted you with my car issues. Until this m...

    2008 Porsche Cayenne S

    -

    Maintenance & Repair

Cayenne

Looking for a Used Cayenne in your area?

CarGurus has 5,225 nationwide Cayenne listings starting at $3,999.

ZIP:

Search Porsche Cayenne Questions

Porsche Cayenne Experts

#1 Markw1952
Markw1952
Reputation 360
#2 Uwin
Uwin
Reputation 290
#3 Andrew Dickens
Andrew Dickens
Reputation 280
View All

Related Models For Sale

Used Porsche 911
91 Great Deals out of 4,513 listings starting at $10,500
Used BMW X5
451 Great Deals out of 15,733 listings starting at $2,800
Used Land Rover Range Rover Sport
170 Great Deals out of 6,331 listings starting at $7,950
Used Land Rover Range Rover
99 Great Deals out of 4,532 listings starting at $3,499
Used Porsche Cayman
15 Great Deals out of 572 listings starting at $15,900
Used Audi Q7
82 Great Deals out of 4,402 listings starting at $6,850
Used Porsche Boxster
45 Great Deals out of 1,146 listings starting at $3,920
Used Mercedes-Benz M-Class
172 Great Deals out of 5,236 listings starting at $2,800
Used BMW X6
41 Great Deals out of 1,551 listings starting at $17,000
Used Mercedes-Benz S-Class
140 Great Deals out of 6,601 listings starting at $2,990
Used Mercedes-Benz E-Class
360 Great Deals out of 19,350 listings starting at $1,500
Used Audi Q5
119 Great Deals out of 6,829 listings starting at $8,995
Used Jeep Grand Cherokee
1,027 Great Deals out of 72,252 listings starting at $700

Used Cars For Sale

2017 Porsche Cayenne Turbo For Sale
89 listings starting at $119,997
2016 Porsche Cayenne Turbo For Sale
22 listings starting at $91,885
2015 Porsche Cayenne Turbo For Sale
27 listings starting at $78,995
2014 Porsche Cayenne Turbo For Sale
3 Great Deals out of 22 listings starting at $51,991
2013 Porsche Cayenne Turbo For Sale
9 listings starting at $44,440

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.