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1GN-IS300 ISF-FRONT BBK BRACKETS

$250.00Price
Quantity
EXPECT 3 WEEK DELIVERY TIME

These 1GN-IS300 ISF-FRONT BBK brackets are designed with motorsports forward, delivering precision and adaptability for high-performance braking systems. They come with the ability to adapt a thermal infrared laser unit to measure brake disc temperatures in real time, giving you critical data for optimal brake management. Engineered to work seamlessly with the 4 piston GS350 calipers or the ISF 6 piston calipers, these brackets ensure maximum compatibility and reliability. At Advanced Performance, we prioritize innovative solutions that elevate your vehicle's track and street performance with professional-grade components. Trust in brackets that combine cutting-edge technology with durable design for superior braking control.


  • These are the standard 2IS IS350 4-pot brakes.

    1. 2013+ GS350 F-Sport FRONT CALIPERS

    The 2013+ GS350 F-Sport uses a larger Advics 4-pot setup.

    These are NOT the same as regular GS350/non-F brakes.

    Important:

    • Uses 14" rotors (356mm)

    • Direct bolt-on to many Lexus knuckles

    • Same pad shape as IS350 4-pots

    • Requires 18"+ wheels

    2. IS F FRONT CALIPERS (BREMBO)

    The IS F uses true Brembo 6-piston front calipers.

    Model

    Caliper Type

    Rotor Size

    2008-2014 IS F

    Brembo 6-piston

    360x30mm

    Key interchange info:

    • IS F calipers bolt onto many Lexus platforms

    • Typically paired with:

      • 2013+ GS350 F-Sport rotors

      • RC350 F-Sport rotors

    • IS F OEM rotors are usually NOT used during swaps due to offset/hub differences.

    Common swap:

    • IS F Brembos

    • GS350 F-Sport 356mm rotors

    • Direct bolt-on to:

      • 3IS

      • 4GS

      • RC

      • Some older IS chassis with adapters

    3. GS F / RC F FRONT CALIPERS

    The GS F and RC F share the newer-generation Brembo setup.

    Model

    Caliper Type

    APES Rotor Size

    GS F

    Brembo 6-piston

    380x34mm

    RC F

    Brembo 6-piston

    380x34mm

    These are:

    • Larger than IS F brakes

    • Require:

      • 19"+ wheels usually

      • Larger rotors

      • Dust shield trimming

    • NOT directly interchangeable with IS F rotors/calipers without matching components.

    4. INTERCHANGEABILITY SUMMARY

    A. IS350 ↔ GS350 F-Sport

    Item

    Interchange?

    Notes

    Calipers

    YES

    Bolt pattern compatible

    Rotors

    NO

    GS F-Sport uses larger 356mm

    Pads

    YES

    Same pad profile

    Brake lines

    Usually YES

    Minor variations possible

    The GS350 F-Sport calipers are basically a spaced-out larger version of the IS350 4-pots.

    B. IS F Brembos ↔ GS350 F-Sport Rotors

    Item

    Interchange?

    IS F calipers + GS350 F-Sport rotors

    YES

    IS F calipers + IS350 rotors

    NO

    IS F rotors on GS350 F-Sport calipers

    NO

    This is the most common OEM Lexus BBK swap.

    C. GS F / RC F ↔ IS F

    Item

    Interchange?

    Notes

    Calipers

    Physically similar

    Different sizing

    Rotors

    NO

    GSF/RCF are 380mm

    Wheels

    Different clearance

    Usually 19"+ required

    5. IS300 BBK SWAPS

    Swap

    APES 2 Piece Rotor Used

    Notes

    IS350 4-pot upgrade

    334mm IS350


    GS350 F-Sport upgrade

    356mm GS rotor


    IS F Brembo swap

    GS350 F-Sport 356mm


    GS F / RC F swap

    380mm


    6. QUICK IDENTIFICATION GUIDE

    Caliper

    Pistons

    Easy Visual

    IS350

    4

    Smaller Advics

    GS350 F-Sport

    4

    Larger Advics body

    IS F

    6

    Brembo logo

    GS F / RC F

    6

    Larger Brembo, thicker rotor


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