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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, X90, X100, Progres, and VerossaX110 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!

This kit is 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-F14" rotors!

This kit includes everything you need for a full bolt on installation for your front brakes!

• Brand new Lexus OEM Calipers
• XAT Racing adapter mount brackets & hardware
• Roll center adjusters for bolt on installation
• Cross drilled rotors
• StopTech pads
• Stainless braided brake lines

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 and IS250/IS350 F Sport front wheels. We cannot make any promises on what else will not fit, however every other 18" wheel we have tried does fit over these brakes, including factory X-Runner wheels, Enkei NT03+, G35 Ray's wheels, etc.

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

Bracket fitment:

☼ 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!

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.

Direct fit for:

☼ 1992-2005 Lexus GS300 / Toyota Aristo JZS147, JZS160, JZS161

☼ 1998-2000 Lexus GS400 / Toyota Aristo UZS160

☼ 2001-2005 Lexus GS430 / Toyota Aristo UZS161

☼ 2001-2005 Toyota Crown Majesta 1UZ

☼ 2001-2010 Lexus SC430 / Toyota Soarer UZZ40

☼ 1997-2017 Toyota Century V12 GZG50 

☼ 1989-2000 Lexus LS400 / Toyota Celsior UCF10, UCF11, UCF20, UCF21

☼ 1992-2000 Lexus SC300, SC400 / Toyota Soarer JZZ31, UZZ30

☼ 1993.5-2002 Toyota Supra JZA80 (turbo or N/A)

The XAT Racing Lexus Brake Upgrade Kit comes with everything you need to bolt on this new brake setup, short of your favorite brake fluid. That includes calipers, rotors, pads, pins, anti-rattle springs, mounting hardware, roll center adjusters, brackets, and stainless braided lines.

Calipers are sourced from a 2007-2020 LS460, LS460L, LS600h, and even the new LS500 4 piston fronts, RWD non-sport package K17 style. We typically source a used set and rebuild them, though we can also get brand new OEM Lexus/Advics ones if you prefer. 

We typically prefer the Posi-Quiet Centric/Stoptech pads, as they have excellent street performance and are not unnecessarily loud/squeaky once properly bedded in. Other options are available as well, if you prefer.

For discs, we use preferred Centric/StopTech 2008-2014 IS-F 360mm (14.2 inch) rotors, not the cheap garbage ones. They come cross drilled from the factory (just like the IS-F rotors are), though we have other bolt on options as well if you're going for a different style or preference. We've not heard of any issues with rotor cracking like some other aftermarket applications have reported.

Please note that calipers are supplied bare natural dark grey. At this time, we do not have a reliable consistent source for powdercoating calipers properly, so we recommend reaching out to places local to you

Although this kit uses DOT approved components, please note it is meant for off road use only. Proper installation is required, and all safety precautions should be heeded. Most parts are readily available, but expect about a 1 week wait for us to have everything together

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 and IS250/IS350 F Sport front wheels. We cannot make any promises on what else will not fit, however every other 18" wheel we have tried does fit over these brakes, including factory X-Runner wheels, Enkei NT03+, G35 Ray's wheels, etc.

Need replacement rear rotors for your LS430 upgrade brake kit on your 2GS (GS300, GS400, GS430, or SC430)? If they've thinned past 15mm of thickness, then it's time for new ones. 

These have the same dimensions as the MkIV Supra TT rotors, and are direct replacements. We try to keep these in stock, but please reach out to us beforehand if availability is a concern, and we can let you know what is available at the time! 

Please note that included calipers are supplied bare natural dark grey. Our local powdercoaters are still unable to take on new work, so you will have to take care of different colors on your side.

Fits GRN225 (1GR-FE Access Cab, X-Runner), TRN220, and TRN225 chassis' (2TR-FE, Regular Cab and Access Cab) 5 lug 2005-2015 Tacoma!

Includes:

• Brand new OEM Lexus calipers (not cheapo knockoffs!)
• 5 lug 2nd gen Tacoma specific mounting brackets 
• Mounting hardware
• StopTech/Centric Posiquiet ceramic brake pads, pins, and clips
• StopTech/Centric cross drilled rotors
• StopTech stainless braided brake lines

Us 5 lug Tacoma owners really get the short end of the stick. The 6 lug 4WD trucks all got a decent 4 piston brake setup, whereas ours is almost the same size as the Camry. This issue is compounded for X-Runner guys, especially with boost on top!

From the success of our brake kits for the RWD Lexus cars (GS, SC, LS, etc), we have adapted and implemented a similar complete bolt on kit for the 2005-2015 Tacoma 2WD trucks, including X-Runner, excluding PreRunner. All 5 lug trucks.

The XAT Racing Lexus Brake Upgrade Kit comes with everything you need to bolt on this new brake setup, short of your favorite brake fluid. That includes calipers (optionally, also can be powdercoated as pictured), rotors, pads, pins, anti-rattle springs, mounting hardware, brackets, and stainless braided lines. We've had to switch to more expensive Wilwood lines and increase the cost somewhat until StopTech can replenish current backorders.

Calipers are sourced from a 2007-2020 LS460, LS460L, LS600h, and even the new LS500 4 piston fronts, RWD non-sport package K17 style. We typically source brand new OEM Lexus/Advics. You also do NOT need the roll center adjusters we make to install on a Tacoma! This listing includes everything else you need for 100% bolt on and go!

We typically prefer the Posi-Quiet Centric/Stoptech pads, as they have excellent street performance and are not unnecessarily loud/squeaky once properly bedded in. Other options are available as well, if you prefer.

For discs, we typically use off-the-shelf preferred Centric/StopTech 2008-2014 IS-F 360mm (14.1 inch) rotors. They come cross drilled from the factory (just like the IS-F rotors are), though we have other bolt on options as well if you're going for a different style or preference. We've not heard of any issues with rotor cracking like some other aftermarket applications have reported.

Although this kit uses DOT approved components, please note it is meant for off road use only. Proper installation is required, and all safety precautions should be heeded. 

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 and IS250/IS350 F Sport front wheels. We cannot make any promises on what else will not fit, however every other 18" wheel we have tried does fit over these brakes, including factory X-Runner wheels, Enkei NT03+, G35 Ray's wheels, etc.

There's a number of brake pad options out there with different compounds and capabilities. We've found the best all around option and have been using these since our very first kit in 2019.

These pads are great for all uses: street, strip, race, drift, highway cruising, etc. Theyre dead quiet in all conditions and have great feel.

They also come with all necessary installation hardware. Many less expensive kits out there do not include all of the needed springs/clips, and some dont include any at all! Be wary of these kits, as you will no doubt end up spending extra time and money to source the individual parts you need separately. Or you can purchase this kit, which we typically keep in stock and ready to ship next day!

Save yourself the hassle and go with the option we selected!