340i: Pilot Super Sports on rear...add PS4S on the front?

pimp4cheddar · 11-18-2019, 02:18 PM

Currently have a 340i with M Sport and Track Handling Pack.

I just threw a set of rear tires on my car about 4 months ago and now my fronts need to be replaced.

Tire Rack has the newer Michelin PS4S on sale. I planned on going with the traditional Michelin Pilot Super Sports...but they are an older tire and a few bucks more than the newer PS4S.

Am I crazy to mix tires or should I just get the Michelin PSS and call it a day?

Figured I'd ask the experts.

Juice247 · 11-18-2019, 03:34 PM

If you do mix, I'd slap the newer/better tires on the rears and move the older tires up front. You never want more grip on the front.

_tlink · 11-18-2019, 03:50 PM

You're RWD im assuming, so at least make sure you are on the same tires in the rear. People will say it must be the same all around but you should be fine. If your tires are staggered size then just keep the newer ones upfront, but if you are running square, toss the newer ones in back.

Juice247 · 11-18-2019, 05:01 PM

Since his first pair only have a few months on them, it's not going to make much of a difference, however, if you're changing 2 tires, you always put the better ones on the back. If your front end has more grip than the rear, the rear has the potential to swing around during braking and hard cornering. Since his car is RWD, it's even more critical to have the best grip in the back. Understeer and front end push won't bite you as much as losing your tail.

jmg · 11-18-2019, 11:12 PM

You will be fine. The 4Ss have better wet grip, but the differences in the dry are not big enough to worry about what's in the rear or the front, especially if you aren't tracking.

eluded · 11-19-2019, 01:51 AM

Great advice here so far. Must make sure they do t have more bite than the rears

11-18-2019, 02:18 PM	#1
pimp4cheddar El Capitán 521 Rep 2,652 Posts Drives: BSM X3M Join Date: Jul 2011 Location: USA iTrader: (25)	340i: Pilot Super Sports on rear...add PS4S on the front? Currently have a 340i with M Sport and Track Handling Pack. I just threw a set of rear tires on my car about 4 months ago and now my fronts need to be replaced. Tire Rack has the newer Michelin PS4S on sale. I planned on going with the traditional Michelin Pilot Super Sports...but they are an older tire and a few bucks more than the newer PS4S. Am I crazy to mix tires or should I just get the Michelin PSS and call it a day? Figured I'd ask the experts.
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11-18-2019, 03:34 PM	#2
Juice247 Private First Class 108 Rep 187 Posts Drives: '17 BMW 440xi Gran Coupe Join Date: Jun 2019 Location: Chicago iTrader: (0)	If you do mix, I'd slap the newer/better tires on the rears and move the older tires up front. You never want more grip on the front.
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11-18-2019, 03:50 PM	#3
_tlink Guy with a car 98 Rep 224 Posts Drives: 15' 435i Msport Join Date: Jul 2017 Location: Westchester, NY iTrader: (1)	You're RWD im assuming, so at least make sure you are on the same tires in the rear. People will say it must be the same all around but you should be fine. If your tires are staggered size then just keep the newer ones upfront, but if you are running square, toss the newer ones in back. __________________ 15' 435i BSM on CR // BM3 Stage 2 93 OTS // NGK Plugs Gapped 0.023" // VRSF Catless DP // CTS Turbo Intake, CP, FMIC // AWE Tuning w/ Perf. Midpipe // BC Racing BR Coilovers // Apex EC-7 // Michelin PS4S // Plus a shit load of carbon
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11-18-2019, 05:01 PM	#4
Juice247 Private First Class 108 Rep 187 Posts Drives: '17 BMW 440xi Gran Coupe Join Date: Jun 2019 Location: Chicago iTrader: (0)	Since his first pair only have a few months on them, it's not going to make much of a difference, however, if you're changing 2 tires, you always put the better ones on the back. If your front end has more grip than the rear, the rear has the potential to swing around during braking and hard cornering. Since his car is RWD, it's even more critical to have the best grip in the back. Understeer and front end push won't bite you as much as losing your tail.
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11-18-2019, 11:12 PM	#5
jmg Lieutenant General 18697 Rep 14,115 Posts Drives: G82 M4C X-Drive Join Date: Mar 2013 Location: Orange County, CA iTrader: (1) Garage List 2022 G82 M4C X-Drive [9.85] 2018 F80 M3 CS [9.87] 2019 i3 BEV [0.00]	You will be fine. The 4Ss have better wet grip, but the differences in the dry are not big enough to worry about what's in the rear or the front, especially if you aren't tracking. __________________ 2022 G82///M4 Competition X-Drive - KW-HAS, EBC Bluestuff, Millway Race Camber Plates, Cup2 Connect, PSI High Flow Midpipe, Lightweight Front Lip, M Perf Flow Through Wing Previous • 2018 F80 ///M3 CS • 2016 F80 ///*M3 IG: Raging_G82
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11-19-2019, 01:51 AM	#6
eluded 2JZ-GTE 3032 Rep 3,992 Posts Drives: 340 6MT, 50e, others Join Date: Nov 2015 Location: Sofia iTrader: (0)	Great advice here so far. Must make sure they do t have more bite than the rears __________________ A man who views the world the same at 50 as he did at 20 has wasted 30 years of his life.
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