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'06 STS N* 1SG Pkg, blk/blk
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56 Posts
Discussion Starter #1
My '06 STS RWD N* 1SG needs new rubber. I have picked up on hearsay that these days it is wise to stay with factory equipped tires as the car is designed around them. I have the Michelin Pilots on it now and was hoping for something a bit stickier and perhaps softer on the ride. Not sure those 2 go together. Comments?
 

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2006 STS V8 1SF RWD
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6,478 Posts
Continental ExtremeContact DWS...Sticky and soft.
 

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05 STS4
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4,241 Posts
DWS are best bang for buck. Won't like the curves as much due to soft sidewall but has great wet/snow performance and long tread life. If not in a snow area get the conti dw
 

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08 STS4 V8 1SG & 04 SRX4 V8 & 01 Monte SS
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4,988 Posts
Feel free to use the rear tire size on all 4 if you have staggered setup as well.
 

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2006 STS4 V8 1SG & 2007 STS V8 1SE
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8,178 Posts
... or the front size if you prefer a quieter, more compliant ride.

You don't say what model Michelin's but most turn to rocks sooner than they should (IMHO). We are real happy with our Conti's; DWS & DW.
 

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2006 STS
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50 Posts
I have an 06 STS V8 with the staggered setup (18in wheels). Came with Michelin's from the factory. Replaced them with Pirelli PZeros this past summer. The Pirellis offer a much more compliant ride - i think you lose a bit of the tight cornering as a result. They seem stickier as well - not something I would use in snowy conditions, but seem to get the job done our Pacific NW rainy weather..
 

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'06 STS N* 1SG Pkg, blk/blk
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56 Posts
Discussion Starter #7 (Edited)
The Mich's I have on there now are Pilot HX MXM4.

I do not understand why the width is staggered. And I didn't realize you could go with one size or another (non-staggered). Why did Cadillac make them staggered? If I put the 50 profile size as on the back, on the front would they rub at all? BTW, I prefer good handling over comfort - why else own a 1SG??? :)

My son is recommending BF Goodrich G-force Sport Comp2 because they are popular on Vette's. Anyone have experience with them? Both the Conti DWS and BF Goodrich are about the same price, less than the Mich's.
 

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2006 STS4 V8 1SG & 2007 STS V8 1SE
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8,178 Posts
255/45R18's don't rub on the front.

Experienced member engineers claim performance considerations led Cadillac to equip the higher trim level STS's with 17" & 18" staggered setups. Others say it was a marketing decision.

Either way, IMHO most of the Michelins are over-rated.
 

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2005 STS N*, 1SF, 144K mi.
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650 Posts
Another vote for Continental Extreme DWS.

Good wear, plenty of grip, quiet, and they're amazing in the rain.

This is going to be one of the few times I replace worn tires with the same ones.
 

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2006 STS4 V8 1SG & 2007 STS V8 1SE
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8,178 Posts
The only OEM tires I ever re-fitted were the Goodyear Eagle GA's on my '93 Buick Roadmaster Limited.

They really suited that beast and 3 sets (minus the spare) took it most of the way to the moon; 200,000 miles! I cheaped out after that when my local guy convinced me to mount Firestones. They were OK but by that time the car was getting geriatric. I gave it to Bart Starr's Rawhide and made more on the tax deduction than I ever would've otherwise. (Now, it's the receipted proceeds.)
 
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