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      05-31-2017, 09:09 PM   #1
PetrolFumes
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305/30 tire on 343m wheels?

anyone running this size on the stock 343m wheels in the rear? I want to bump up for more traction with tune and downpipes
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      05-31-2017, 11:55 PM   #2
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Yes, 305/30/20 99Y pzeros on stock 343m. Wont make much difference with a flash tune because the wtq increase is so significant, at least for pzeros. Others can chime in with 305 MPSS or MP4S....
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      06-01-2017, 06:34 AM   #3
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Quote:
Originally Posted by apexlocator View Post
Yes, 305/30/20 99Y pzeros on stock 343m. Wont make much difference with a flash tune because the wtq increase is so significant, at least for pzeros. Others can chime in with 305 MPSS or MP4S....
@apexlocator is correct. The Pirelli Pzero 305/30/20 99Y will fit perfectly. My personal experience has been great with the setup, I did have better traction over the MPSS. Has to be 99y on the 305 to fit right.

Others have fitted the R888s which are a very sticky tire but very low tread wear and not a DD tire. It does have a slight bulge.

Here are some old pictures I had when I had my car and the 343M setup
Attached Images
    
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      06-01-2017, 08:27 AM   #4
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Quote:
Originally Posted by 13M5F10 View Post
@apexlocator is correct. The Pirelli Pzero 305/30/20 99Y will fit perfectly. My personal experience has been great with the setup, I did have better traction over the MPSS. Has to be 99y on the 305 to fit right.

Others have fitted the R888s which are a very sticky tire but very low tread wear and not a DD tire. It does have a slight bulge.

Here are some old pictures I had when I had my car and the 343M setup
Nice
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      06-01-2017, 09:03 AM   #5
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I'm running 305/30-20 MPSS and would def recommend doing it over the stock 295's. Technically it's to wide for a 10" rim, but I don't notice a difference in drivability other than better traction. Plus looks better I have spacers 12mm front, 10mm rear.
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      06-01-2017, 10:28 AM   #6
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Quote:
Originally Posted by KMORGSM5 View Post
I'm running 305/30-20 MPSS and would def recommend doing it over the stock 295's. Technically it's to wide for a 10" rim, but I don't notice a difference in drivability other than better traction. Plus looks better I have spacers 12mm front, 10mm rear.
Perfect fitment with the spacers
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      02-08-2019, 03:24 PM   #7
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What's the proper front tire if you upgrade to 305 rear?
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      03-30-2019, 05:22 PM   #8
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Mich Pilot Cup 2’s. 305/30/20 no spacers and plenty of room inside and at the lip. I’ll likely try an even wider tire (315/30/20) next time if i can find one...
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      05-02-2019, 06:42 AM   #9
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Guys - has anyone checked the inside of the 305 tires you are running for wear due to touching suspension parts?

Obviously its too late once you know you have damaged it.....at speed.

How many are on a CP and spacers at the rears and running 305 or bigger (on 343's)?
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      05-02-2019, 03:22 PM   #10
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Quote:
Originally Posted by schrickm5 View Post
Guys - has anyone checked the inside of the 305 tires you are running for wear due to touching suspension parts?

Obviously its too late once you know you have damaged it.....at speed.

How many are on a CP and spacers at the rears and running 305 or bigger (on 343's)?
Clears it fine without spacers though I have 5mm spacers so the inside is in exactly the same position as if it was running 295's.
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      05-02-2019, 07:36 PM   #11
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Quote:
Originally Posted by M5theonlyone View Post
Clears it fine without spacers though I have 5mm spacers so the inside is in exactly the same position as if it was running 295's.
same here running 305/35/20s with 5mm spacers. AutoCoutureMotoring said cleared fine.
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      06-25-2019, 07:01 PM   #12
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Quote:
Originally Posted by SLOWER View Post
What's the proper front tire if you upgrade to 305 rear?
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      06-25-2019, 09:19 PM   #13
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Quote:
Originally Posted by schrickm5 View Post
Guys - has anyone checked the inside of the 305 tires you are running for wear due to touching suspension parts?

Obviously its too late once you know you have damaged it.....at speed.

How many are on a CP and spacers at the rears and running 305 or bigger (on 343's)?
CP on KW HAS with 305's and no rubbing on suspension with 10mm spacers.
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      07-05-2019, 06:19 PM   #14
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Do you need longer factory bolts when running 10mm spacers on 343-295 size tires. How about 305s?
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      07-05-2019, 08:39 PM   #15
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the longer bolts are dictated by the spacer
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      02-08-2022, 07:19 PM   #16
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Hello guys, I have a question.

Can I go 315s on the rear and 285 on the front?

I'm looking for an aggressive rear look, and I see one of the best ways to achieve this is by fat rear tires lol
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      02-10-2022, 09:06 AM   #17
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Don't think you can get 315's in Michelin.
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      02-10-2022, 06:35 PM   #18
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You can do 315 with Toyo r888r. However, if you do that, you might need to reinforce the rear end so it doesn't break stuff with all that grip.
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      02-11-2022, 02:29 PM   #19
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Quote:
Originally Posted by M5_Raz View Post
You can do 315 with Toyo r888r. However, if you do that, you might need to reinforce the rear end so it doesn't break stuff with all that grip.
Getting a reinforced diff rear billet just for those Toyo's would make it quite an expensive tyre change
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      02-22-2022, 05:51 AM   #20
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Ok, seems like best set up would be 305/30/20 Rear and 295/30/20 Front
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      03-08-2022, 01:16 PM   #21
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Quote:
Originally Posted by Da_Meister_22 View Post
Hello guys, I have a question.

Can I go 315s on the rear and 285 on the front?

I'm looking for an aggressive rear look, and I see one of the best ways to achieve this is by fat rear tires lol
Yes you can.
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      03-09-2022, 01:28 AM   #22
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Quote:
Originally Posted by 13M5F10 View Post
Quote:
Originally Posted by apexlocator View Post
Yes, 305/30/20 99Y pzeros on stock 343m. Wont make much difference with a flash tune because the wtq increase is so significant, at least for pzeros. Others can chime in with 305 MPSS or MP4S....
@apexlocator is correct. The Pirelli Pzero 305/30/20 99Y will fit perfectly. My personal experience has been great with the setup, I did have better traction over the MPSS. Has to be 99y on the 305 to fit right.

Others have fitted the R888s which are a very sticky tire but very low tread wear and not a DD tire. It does have a slight bulge.

Here are some old pictures I had when I had my car and the 343M setup
Love your ride!
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