Lexus IS300 Brembo 17z 18z Rear 4-Piston Calipers RCF/ISF Rotors | Budget Big Brake Kit

Fitting the Brembo (17z 18z) 4-piston rear brake calipers onto Lexus IS300 I got from a junkyard for the $60. These will fit 1IS IS300 and GS300/GS400 (2GS) using overkill_engineering (Instagram) custom brackets. They require GS-F/RC-F or IS-F rear 13.6" (345mm) rotors. My previous front 6-piston Brembo 17z fitting:    • Installing Lexus IS300 Roll Center Adjuste...   If you need to grind for clearance, I recommend getting a 9” disk. The common 4-1/2” makes it hard to reach for rotor clearancing. For grinder control, definitely recommend a foot pedal to control speed, I've used the Foredom brand foot pedal since the 1990s (nail salon days) for my Dremel and grinders. For safety, I used this faceshield when grinding. Dewalt 9" Disk - https://amzn.to/36b5Pn1 120V Foot-pedal - https://amzn.to/36ceohq Faceshield Protector - https://amzn.to/369I1QH Hardware I ordered from BelMetric (shipping was $9.25): 4 x BSH14X1.5X30 - Allen Head 12.9 Black (Or reused triple square VW/Audi bolts) = $6.96 4 x BSH12X1.75x30 - Allen Socket Head = $2.52 4 x WL12CLZ - Lock Washer Zinc = $0.66 4 x WL14CLZ - Lock Washer Zinc = $1.00 The rear calipers should part numbers on edge: 20.7673.03 and 20.7673.04 For the rear you need IS-F drilled or GS-F slotted rotors, I ordered some DYNAMIC FRICTION 600-75040D and 600-75039D rotors because they were only RC-F/GS-F solid blanks available to match the F-sport solids. All others are OE still with the slots or drilled for IS-F. ------------------------- Support the Patreon:   / tunerwithkids   Merch Available: https://teespring.com/stores/tuner-wi... Follow Me on IG:   / tuner_with_kids   For questions and inquiries: [email protected] ------------------------- #BBK #Lexus #Brembo Disclaimer: "Tuner with Kids", the alias for the human content creator for this YouTube channel, is not responsible for any damages, injuries, losses, or liabilities associated with any repairs, upgrades, or maintenance performed on yours, or any elses, vehicle/property whatsoever. No warranty, express or implied, is made as to the accuracy or completeness of any information provided within this channel. Viewing and using the “as-is" information of this channel is totally at your own risk. Always wear personal protection equipment and follow appropriate vehicle manufacturer service manual guidelines with original manufacturer parts only when performing any repairs, upgrades, or maintenance upon any vehicle/property. Please note that some of the links provided are affiliate links and I may earn a commission if you purchase through the links. I use all of the products shown and recommend them because they are from companies I have found to be helpful and trustworthy. Please let me know via email if you have questions regarding any of the products/tools used.