Previous image
JZS155 Crown with LS460 ISF brake upgrade
Next image
Zoom image

XAT Racing IS300 Crown Chaser Mark II Front Big Brake Kit LS460 Caliper Adapter Brackets X100 JZS151 JZS155


Not rated yet

After the surprise success of our 2GS/SC430 brake adapters, we've started development on an IS300 version as well! These brackets let you bolt on 4 piston LS460 calipers to your IS300 / Altezza, making an inexpensive but VERY effective brake update option! Thanks to Toyota parts interchangeability, that means they also fit Chaser, Cresta, Crown, Mark 2, Progres, and Verossa chassis'!

In our continuing support of Lexus performance products and the UZ platform, we have finished this set of brackets to mount 4 piston LS460 / LS600h brake calipers to any USDM IS300 2000-2005!

These brackets are ideal for those DIYers that are looking for an inexpensive option for brake upgrades. You keep your factory brake lines in this bolt-on solution; all you need is a set of front 2007-2018 LS460, LS460L, LS500, or LS600h fixed 4 piston brake calipers, LS460 fitment pads, and a set of 2008-2014 IS-F 14" rotors!

Although the roll center adjusters aren't mandatory, they provide a bolt on solution. You do not have to run them, though if you do not, you may need to modify the mounting hardware. They will improve the suspension geometry on lowered cars at any rate, so we highly recommend them.

Please note that the LS460 does NOT use 5x114.3 rotors, so you will NOT be able to bolt on the LS460 rotor. We do not have fitment confirmation on the larger LS460 F-Sport 6 piston Brembo brakes, though they may also fit when used with larger rotors.

Additionally, you will most likely need 18" wheels to fit over these. The only 18s we have found to not fit so far are some Enkei RPF1s. We cannot make any promises on what else will not fit, however every other 18" wheel we have tried does fit over these brakes.

Please also note these will fit the S150 series hardtop Crown, not the Crown Majesta. The Majesta JZS155 will use our GS300 adapter brackets

Brackets fit:

☼ 2001-2005 Lexus IS300 / Toyota Altezza JCE10, GXE10, SXE10

☼ 1992-2001 Toyota Chaser / Cresta / Mark II GX100 (1G-FE), JZX100 (1JZ-GE, 1JZ-GTE), JZX101 (2JZ-GE), SX100 (4S-FE), GX90, SX90, JZX90, JZX91, LX90, LX100

☼ 2000-2004 Toyota Mark II GX110 (1G-FE), JZX110 (1JZ-GTE, 1JZ-FSE)

☼ 1995-2001 Toyota Crown GS151 (1G-FE), JZS151 (1JZ-GE), JZS155 (2JZ-GE)

☼ 2000-2003 Toyota Crown GS171 (1G-FE), JZS175 (2JZ-FSE), JZS171 (1JZ-FSE, 1JZ-GTE), LS151

☼ 1999-2007 Toyota Crown JZS175 (2JZ-GE, 2JZ-FSE)

☼ 2001-2007 Toyota Progres JCG10 (1JZ-FSE), JCG11 (2JZ-FSE)

☼ 2001-2004 Toyota Verossa GX110 (1G-FE), JZX110 (1JZ-FSE, 1JZGTE)

☼ 2000-2001 Toyota Origin JCG17

And possibly others!


You will receive 1 pair of brackets to mount both front calipers, as well as mounting hardware. Please note that we normally stock the brackets and rotors, however it may take 1 week to ship the calipers. Please note that free shipping is for the continental US 48 states only

Pictures show the RWD K17 type caliper being used. The AWD N18 caliper has the same bolt pattern, but the caliper sits taller on the rotor. As such, the N18 version will not work with the IS-F rotor. You'll need to stick to the K17 type.

Keep in mind these are designed for off road use only and professional installation is required. We have been driving on these kits for years, but use at your own risk.

  • $245
Qty:  
Add a different product to compare
  • Weight
    5 lbs
  • SKU
    3-002


  • Calipers
    Brand New OEM, None, will source myself
  • StopTech Braided Brake Hose
    Yes! IS300 Fitment, No
  • Brake Pads
    StopTech/Centric (recommended), ADVICS (OEM), Akebono+Fitment Kit, Bosch, Brembo+Fitment Kit, None
  • Rotors
    Cross drilled, None
  • XAT Roll Center Adjusters
    Yes! Make it 100% bolt on, No

Most product ships from either the manufacture or largest wholesale location to pass the saving to you. Most orders will ship via UPS, as we will be able to provide the best rates and have had the least issues when using UPS.


IF YOU DO NOT LIKE THE AUTOMATED SHIPPING CALCULATOR'S RATES, PLEASE CONTACT US AND WE CAN GET YOU A BETTER ONE! Especially for anyone outside the USA, please contact us with a list of parts you'd like to order, and where you are located.

We accept the following payment methods:

Also Venmo and unmarked nonsequential dollar bills

Related products
Drop items here to shop
Product has been added to your cart
  • Choose the product options first
    • $289
    Only 9 left in stock

    Not rated yet
    Add a different product to compare
  • Choose the product options first
    • $1,175

    Not rated yet
    Add a different product to compare
  • Choose the product options first
    • $1,340

    Not rated yet
    Add a different product to compare
  • Choose the product options first
    • $279
    Only 10 left in stock

    Not rated yet
    Add a different product to compare
  • Choose the product options first
    • $1,310
    Only 10 left in stock

    Not rated yet
    Add a different product to compare
  • Choose the product options first
    • $1,220

    Not rated yet
    Add a different product to compare
  • Choose the product options first
    • $265

    Not rated yet
    Add a different product to compare
    • $375

    Not rated yet
    Add a different product to compare
Customers who bought this product also bought
  • Choose the product options first
    • $245
    Only 2 left in stock

    Not rated yet
    Add a different product to compare
    • $93

    Not rated yet
    Add a different product to compare
Customers who viewed this product bought
  • Choose the product options first
    • $245
    Only 2 left in stock

    Not rated yet
    Add a different product to compare
  • Choose the product options first
    • $269

    Not rated yet
    Add a different product to compare
  • Choose the product options first
    • $625

    Not rated yet
    Add a different product to compare
  • Choose the product options first
    • $413.10

    Not rated yet
    Add a different product to compare
  • Choose the product options first
    • $35

    Not rated yet
    Add a different product to compare