348 348 Tires/Tyres

This is a deeper question than you may think, as these sizes are being phased out. The actual question is “who is still producing tires in these sizes in 2025?”.

Folks will tell you get the PS4s, but the fronts are going to be NOS at this point, not fresh out of the mold. They’re only currently making the rear tires.

Be careful out there. A dealer might say they have tires for you, but they might also be two years old at this point.

I highly recommend going to each manufacturer’s website to see what *they* say they’re still making.

 

I recently Dec 2024 got some stock size within a few months date of manufacture PS4 s one axle and PS5 s on the other .

I have them on my Porsche highly recommend. We are in the U.K. / Europe

It matters a bit , when a ran Bentley GT ( 600hp - 200mph ) Pirellis Pzero B spec were the factory tyre but they were twitchy when cold and damp …..6/12 months in the U.K. .
Consensus from forums was switch to Michelin PS s what ever number was current . It was like night + day difference in grip and confidence.

A lot of car forums rant / rave about Michelin PS what ever number ? As said inc Porsche .


Suspect the manufacturers do a deal with a supplier , said supplier sure messes around researches compound and side wall stiffness to suit when the deal is signed .
But I guess it all comes down to money big bucks in the end .
A few yrs down the line a rival pops up with a superior tyres mid time cycle . Factory still fit the original deal tyre Pirelli P zeros which has been superseded by the new kid on the block in this case Michelin PIlot sports .

Doesn’t take long for disgruntled owners on OEM s to go to social media whinging ….and swap to the Michelin PS s .

That’s where we are today .

 

Looks like Continental has these in both sizes!

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Looks like these are available too.

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(IMO) you can’t be ruled by what’s available in your market with a car like the 348, you need to be willing to special order tires from overseas. I generally use the UK websites (as I’m an English speaker) as a definitive source, but you might be better off looking on each tire manufacturer’s home market site. Again, the key is not what’s on the shelf, the key is what’s being made. The realities are grim.

 

Should you want to go really original look, Longstone still provides freshly baked P-Zero Assimetrico tires. Comes with a price, naturally.
https://www.longstonetyres.co.uk/classic-car-tyres/ferrari/348.html

I got two years ago a set of new Michelin PS4 for my 348, unfortunately PS5 doesn't have 255/44R17 in selection.

 

I don’t think these are fresh but I’m happy to be proven wrong. I think Longstone hoards them when Pirelli does a run and then doles them out.

 

Yes, but not in the way you’re thinking. And I certainly wouldn’t put on skinnier rears.

You could do what I did and widen the factory wheels. I have two sets, one of which I’ve widened to 8” and 10” on which I have 235/45s and 285/40s respectively. This opens up two options — a continental and a nitto.

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They’re ceasing production of both, my friend.

 

Before I switched out to 18” Augment Wheels I had updated the original wheels with the Firestone Indy 500. They were way better than I expected and I’m missing many of their characteristics on the Pirelli PZeros I put on the 18s.

 

Long out of production in our sizes, I’m afraid.

 

Long out of production in our sizes, I’m afraid.

 

Before any “ modifications “ to wheel size , tyre sizes that differ from the manual I would consult your insurance Co first .

Suspect they would take a dim view of extending / widening the original wheels ……just saying .

 

Pal.....I can't DM you as your profile is restricted . Im in the same tyre dilemma here at the Gold Coast . Can you DM me so we may communicate by text ? Thanks