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Sumitomo High Performance HTR Z II Tire - 255/45-18 (05-14 All)

32 Reviews
Our Price


  • Item #63008
  • MPN #5518042
  • Market Price $186.00
  • You Save 19% ($36.01)
In Stock Ships same business day.
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Customer Photos
  • Uncompromising traction and handling
  • Excellent anti-hydroplaning characteristics
  • Smooth ride; minimal road noise
  • Unique flanged lip protects rims
See our 2005 V6 Project Car Now Sumitomo's HTR Z II series tire is an ultra high performance summer tire. The aggressively designed 255/45ZR18 delivers extraordinary performance in either wet or dry conditions, on and off the track.

Uncompromising traction and handling. The HTR ZII's extra wide, arched tread blocks deliver uncompromising racing slick-like dry traction and handling. Dual steel belts with spirally-wrapped Jointless Nylon Band reinforcements deliver high-speed stamina and predictable handling, while still minimizing weight and right uniformity. Single Strand Beads help improve wheel fit and retain rigidity under high stress cornering.

Excellent anti-hydroplaning characteristics. Multi Directional Water Channels push water to the sides and away from the center providing excellent hydroplaning resistance and road grip in adverse weather conditions.

Smooth ride; minimal road noise. In addition to outstanding performance, the HTR Z II Series Tires deliver a smooth ride with minimal road noise. That way you and your passengers can be treated to the sounds that really count, like the growl of your motor, the whine of your supercharger, or the bass thumping from your Mach 1000 stereo system!

Unique flanged lip protects rims. The HTR Z II Series Tires also feature a unique flanged lip on the lower sidewall that helps protect your expensive rims from curb damage while parallel parking.

5 Year Warranty. This Sumitomo Tire comes with a 5-year warranty from the date of purchase. Some limitations do apply. Please see the Full Sumitomo Warranty disclosure for details.

Best Fit: 18 x 9 Inch 2005+ Wheels

  • Wide block shoulder stabilizers strengthen shoulders for maximum dry grip and greater, more predictable, steering response for cornering control.
  • Full-width, high density steel belts promote stable, predictable handling, smooth ride, even tread wear, and superb uniformity .
  • PSP Technology optimizes overall casing durability throughout the life of the tire

NOTE: These are ultra high performance summer specific compound and tread tires. Use during the summer and warm temperature months will result in superior traction over “all season” tires. Use during the winter months/cold temperatures significantly reduces traction and increases stopping distance as the compound becomes less sticky.

Mustang Fitment: 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 Details

Free Mounting & Balancing: Professional mounting & balancing is available on all wheels and tires when purchased together on the same order, so you can just swap your wheels in your driveway when they arrive. We even offer Free Nitrogen tire fill (see option above).

  • FREE Mounting and Balancing in 48 hours
  • State of the Art Onsite Tire Facility
  • Scratch-Free process + Hidden Weights
  • TPMS Sensors installed free on 07+ Mustangs (see wheel page for details)
  • Free Shipping on any order to the continental 48 states
  • Please allow an extra 1 to 2 business days on your wheel and tire package for mounting and balancing

Free Nitrogen Fill! AmericanMuscle is proud to bring you the option to fill your tires with pure nitrogen for FREE when we mount & balance your wheel and tire order. Filling your high performance tires with nitrogen has many benefits including:

  • Improves Fuel Economy
  • Cuts down weight
  • Preserves your tires for longer life
  • Tire Pressure is better equalized throughout the year
What's in the Box
  • (1) Tire
Tech Specs
  • Hydroplaning Resistance: 8.0
  • Wet Traction: 8.0
  • Dry Traction: 9.0
  • Snow Traction: N/A
  • Ice Traction: N/A
  • Steering Response: 8.6
  • Cornering Stability: 8.6
  • Ride: 8.2
  • Noise: 8.1
  • Tread Wear: 7.4

KEY: 10-8.6 Oh Yeah!, 8.5-6.6 Above Average, 6.5-4.6 Average, 4.5-2.6 Acceptable, 2.5-0 Unacceptable
  • Boss 302 - 12, 13
  • V6 - 05, 06, 07, 08, 09, 10, 11, 12, 13, 14
  • Bullitt - 08, 09
  • GT - 05, 06, 07, 08, 09, 10, 11, 12, 13, 14
  • GT500 - 07, 08, 09, 10, 11, 12, 13, 14

Most Helpful Reviews View All

Overall Rating 4.7/5 Write a Review
excellent tires

installed wheels and tires wednesday. road dry today and pushed the "bubble" a little today. still very cold,tires held aggressive moves like glued to the road. beats all other tires i have had on my

Read More
Helpful (6) (1)

Great Tires

These tires make a smoother, quieter ride with better handling. The only con that I have is when the wheel is cut sharply, the tires scrub in the wheel well. Easy to avoid though. Absolutely love the

Read More
Helpful (4) (0)

Customer Photos (85) View All

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Q & A (3 Questions, 8 Answers) Ask a Question

Will these fit ? Will these tires fit/work on an 18x8in wheel? -Thanks

Dust Year: 2005 Model: GT

Question Resolved
Good Question (0) (4)
  • According to Tire Rack (who themselves quote Sumitomos specs) these tires (HTR Z II 255/45ZR-18) will fit 8-10" wide rims and are a "plus size" option for 11-12 mustangs with 18x8 rims.

    Helpful (0) (0)

    V6Pony Year: 2012 Model: V6

Show 2 more answers

What PSI should these tires be at? What PSI should these tires be ran at if i'm running them on 18x9 wheels?

CMRad Year: 2012 Model: V6

Question Resolved
Good Question (0) (0)
  • ford factory recommended psi, im runing my 18x10 at 34 psi.

    Helpful (0) (0)

    afelliott Year: 2005 Model: GT

    Top 250 Contributor

Show 2 more answers

I'm lowered with stock 18x8 I have a 2010 Mustang GT with stock 18x8 wheels. I also have the Eibach Pro System Plus installed (purchased here), so I'm lowered about 2" in the front. I'd like to get these tires but want to first make sure they'll fit and won't rub. Help is appreciated.

MGalli Year: 2010 Model: GT

Question Resolved
Good Question (0) (0)
  • They'll fit perfectly. 255 is the widest you can safely go for your wheels, any fatter and you need bigger wheels. So this set up is fine.

    Helpful (1) (0)

    Best Answer

    kcurtsinger Year: 2005 Model: GT

    Top 500 Contributor

Show 1 more answer

Reviews (32) Write a Review

  • 5 Stars .75 75%
  • 4 Stars .19 19%
  • 3 Stars .03 3%
  • 2 Stars .03 3%
  • 1 Stars 0 0%

out of 5 stars

28 Customers Recommend this Product

  • Dry Traction: 4.523809 4.5/5
  • Web Traction: 4 4/5
  • Tread Apperance: 4.809524 4.8/5
  • Ride Quality: 4.333333 4.3/5
  • Bang For Your Buck: 4.545455 4.5/5
Filter By Sort By
  • 5/5

    excellent tires

    March 04, 2010

    installed wheels and tires wednesday. road dry today and pushed the "bubble" a little today. still very cold,tires held aggressive moves like glued to the road. beats all other tires i have had on my car


    Helpful (6) (1)

  • 5/5


    September 01, 2010

    Excellent tires for the money. Great traction and they look awesome with a set of 2010 gt500 wheels. Fast shipping thanks AM


    Year: 2010 Model: GT

    Helpful (4) (0)

  • 5/5

    Great Tires

    January 04, 2010

    These tires make a smoother, quieter ride with better handling. The only con that I have is when the wheel is cut sharply, the tires scrub in the wheel well. Easy to avoid though. Absolutely love the look!


    Helpful (4) (0)

  • 5/5


    August 18, 2012

    Great tires. Good grip in dry, decent in wet. This is my second set, and I love them!


    Year: 2005 Model: GT Driving Style: Daily Driver

    Helpful (2) (0)

  • 4/5

    go with Nitto 555

    October 12, 2012

    I should have stuck with what I know. I tried these but am not impressed. They don't look as good as the Nitto's i had before. The wet traction is horrific. Dry traction not bad. The tire looks like the size isn't correct. Either not wide enough or the tread doesn't extend out enough, just doesn't look like a traditional low profile tire like the Nitto. will not purchase again.


    Year: 2013 Model: V6 Driving Style: Daily Driver 'Stangs I have owned: 3 upstate NY, USA

    Helpful (3) (1)

    • Response from AmericanMuscle

      NITTO tires are higher performance tires when compared to Sumitomo tires. Sumitomo's have a harder compound and will consequently outlast the NITTO tires. The thread pattern can also make them look somewhat different, but if you ordered the same size, both brands would have the same sidewall and width.

      Lisa , Customer Care

  • 5/5

    Great Tire's

    May 04, 2011

    Great tire's!! Hugh improvement from stock tire's. Tread pattern aggresive and look's great on my daily driver.Great grip and very quite on the road. in the recent heavy rain's tire's held the road and performed great never felt like the car was going to get away from me.


    Year: 2007 Model: GT Driving Style: Daily Driver

    Helpful (3) (1)

  • 4/5

    Not For Track Use

    October 31, 2013

    Despite all the claims of great traction, after 3 track sessions all I can say is I'm glad they were cheap and can't wait until they wear out, which from all indications won't be very long. The tire and tread look great, so for street driving and the occasional straight line throttle blip, I would say definitely get this tire, but on the track they feel like grease. I wasn't happy with my stock P-Zeros (255) and 30lb Ford wheels, so I switched to a set of 20lb track wheels, which alone should have made a huge difference, and a set of 275 Sumi's. Not only is traction worse, but I scooped a handful of rubber out from the inside of my front wheels that was causing a huge imbalance vibration at 100+mph.

    Top 500 Contributor


    Year: 2014 Model: GT Driving Style: Race 'Stangs I have owned: 2 Stuart, FL, USA

    Helpful (1) (0)

  • 5/5

    better handling

    January 07, 2011

    These tires came in about 5 days after i ordered them. they looked awesome. put em on my cobra r rims and they look sickkkkk. they appear not to grip as well though in the back on take off. idk why.... but they do have alot better handling driving around turns


    Driving Style: Daily Driver

    Helpful (1) (0)

  • 5/5

    sweet ride

    May 17, 2010

    look great drive even better i noticed they will rub the wheel well though its no big deal as long as you dont crank the wheel to the end

    brian horecky

    Helpful (3) (2)

  • 5/5


    February 24, 2010

    I am happy with the tires an the service so I will give you all 5 stars


    Helpful (0) (1)

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