Chase Bays Bolt-On Dual Piston Brake Booster Eliminator with 6:1 Pedal Ratio
A properly set up manual brake conversion kit improves lap times and creates a more controllable drift/rally car. There is a lot of misinformation about manual brakes, from forums to various videos. Chase Bays has sold over 15,000 manual brake setups in the last decade, covering everything from road race-winning chassis to drift-winning chassis.
With a proper manual brake setup (matching the ratio to the MC bore size, appropriate pad compound, and front/rear bias adjustment), you get the exact same braking every time. Adjusting for maximum braking just before lock-up is where manual brakes truly shine. We call this the 90–99% zone. Finding the precise level of leg pressure to hit that exact threshold is impossible with power brakes. Brakes are very inconsistent... especially with boost. The motorsport data we've gathered doesn't lie. Yes, the 90–99% zone requires a bit more leg effort than power brakes, but that is exactly why it is so superior. It helps immensely in finding the proper leg force every time.
Chase Bays strongly believes that "success is in the details." One look at their products shows how much attention to detail goes into them. From initial thoughts and ideas, through R&D, testing, and final release to the finished product for sale, nothing is left behind; Chase Bays tries to consider everything. Their products are rigorously tested to ensure they perform properly under their own abuse, and ultimately, under the user's abuse as well.
Note: You must purchase a Chase Bays Brake Line Relocation Kit for your platform or create custom lines. (All 3 outlets are -3AN Male)
Features
- Changes pedal ratio from 4:1 to 6:1 using the included bolt-on bracket for increased master cylinder leverage
- True dual-piston master cylinder with isolated front and rear circuits in the reservoir
- Carbon 4140 steel pushrod and clevis
- Adjustable bias valve with -3AN 90° outlet
- Includes SS rear outlet hardline to bias valve
- L-Banjo front outlet fitting for easy installation to front lines using SS banjo bolts
Benefits
- Consistent, controllable braking for the exact same brake feel every time
- High-heat vented diaphragm to keep temperatures low
- Pedal ratio modification emphasizes manual braking
Applications
- 1993–1997 Lexus GS300
- 1991–1997 Toyota Aristo
- 1997–2005 Lexus GS300
- 1997–2005 Toyota Aristo
- 1989–1992 Toyota Cressida MX83
What's in the box?
- 1 - Ultra-compact master cylinder with 1" bore
- 1 - High-heat polypropylene fluid reservoir with isolated F/R circuits
- 1 - Billet Chase Bays reservoir cap with high-heat vented diaphragm
- 1 - Billet MC / firewall adapter plate with raised mounting points
- 1 - L-Banjo front outlet fitting for easy installation to front lines using SS banjo bolts
- 1 - SS rear outlet hardline to bias valve
- 1 - Carbon 4140 steel pushrod and clevis
- 1 - Adjustable bias valve with -3AN 90° outlet
- 1 - Stainless steel bolt-on 6:1 ratio pedal adapter
References
Warranty
Before Ordering
〇 Regarding Import Consumption Tax
At the Shaftoya shopping site, we pay the import consumption tax incurred at the time of import on your behalf, so there are no additional charges beyond the total amount paid at checkout.
〇 Checking Compatibility
Our entire product database is based on North American vehicles (USDM), so please verify compatibility with Japanese vehicles (JDM) before ordering. (If you are unsure if a listed product is compatible with your vehicle, please feel free to contact us. Our support team will investigate for you.)
If you order without confirming compatibility, we cannot accept returns due to incompatibility.
Please note that even if items are sorted by selecting the year, manufacturer, and vehicle model in the tabs on our top page, this does not necessarily mean they will fit Japanese model vehicles without modification.
All products have been translated into Japanese using translation software. As there may be confusing expressions, please contact us before ordering if you have any questions.
○ Regarding Shipping
Shipping costs are paid at the time of settlement. An estimate for shipping costs will be automatically calculated when you enter your shipping address on the checkout page. For large items such as body parts, there may occasionally be a significant discrepancy between the automatically calculated shipping amount and the actual shipping cost. In such cases, we will contact you individually via email.
Basically, all products are shipped internationally from our US warehouse. Unlike domestic shipping in Japan, international shipping takes about 7 to 14 days, so please order with enough time to spare. If you are in a hurry, please contact us to confirm the delivery date in advance. Please note that all products are transported by air. They are not shipped by sea.
○ Regarding Japanese Vehicle Inspection (Shaken) Compatibility
The products we handle are basically all designed and manufactured outside of Japan. Please understand that they do not conform to the "Japanese Vehicle Inspection System," and we cannot provide strength calculation documents or the like for the Japanese vehicle inspection system. Therefore, all parts are sold for the purpose of "use on circuits, private property, or off-road," and installation and use are at your own risk.
○ Regarding Warranty
Please check the contents immediately upon arrival. Since all products are shipped internationally from outside Japan, there may be shipping damage to packaging boxes or products. Please understand that we will only provide returns, refunds, or replacement products if you contact us within 7 days of receipt regarding products with shipping damage, defective products, or items different from your order. Please note that for products sold through us, we will handle warranty-related matters "only through us." We do not handle matters through other companies or distributors located in Japan.