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Lexus GS-series
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Lexus GS-series (GS300 GS350 GS400 GS430 GS460)
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The auto industry's leading sport sedan in stock form is already at the top of its game, but with Daizen Sport Tuning upgrades, your Lexus GS will spring to life.
Daizen Sport Tuning upgrades will push your GS beyond the ultimate in performance and driving confidence.
Give your GS the nimble attitude that it deserves, while still maintaining the solid and comfortable Lexus ride that it was designed for.
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| 1993-1997 |
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Lexus GS300 |
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JZS147 |
| 1998-2005 |
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Lexus GS300 |
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JZS160 |
| 1998-2000 |
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Lexus GS400 |
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UZS160 |
| 2001-2005 |
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Lexus GS430 |
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UZS161 |
| 2006 |
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Lexus GS300 RWD |
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GRS190 |
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Lexus GS300 AWD |
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GRS195 |
| 2007-2009 |
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Lexus GS350 RWD |
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GRS191 |
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Lexus GS350 AWD |
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GRS196 |
| 2007-2009 |
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Lexus GS450h |
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GWS191 |
| 2008-2009 |
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Lexus GS460 |
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URS190 |
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Daizen Sport Tuning products are designed to work seamlessly with your Lexus' advanced suspension design and engineering.
Acting in symphony with either the OEM suspension or other upgraded components, you will experience the best of both worlds - comfort and performance.
Daizen Sport Tuning products are designed and produced to meet or exceed factory standards for quality and reliability, so you can be assured that you will have trouble-free performance for years to come. All components are engineered for proper fit, installation, and performance, and are thoroughly tested and validated for thousands of miles before they are
approved for production and sale. This assures that your GS receives what it deserves - the best that the market has to offer.
OEM performance shortcomings
Factory-stock Lexus GS models suffer from over-conservative suspension tuning, especially in the sway bar department.
This is evidenced by significant body roll during turns, and not-so-confident handling - especially at higher speeds.
Daizen Sport Tuning OEM sway bar bushing upgrades provide a noticeable improvement in the reduction of body roll and chassis response.
For the ultimate in handling, treat yourself and step up to a full sway bar upgrade, complete with a racing inspired 3-position adjustable rear sway bar. With a full sway bar upgrade, your Daizen Sport Tuning equipped GS will be second to none.
Bushing upgrades
Factory rubber bushings deteriorate over time, and degrade your GS' driving stability and performance - and even your safety. Daizen Sport Tuning steering rack, OEM sway bar and control arm bushing kits restore your suspension's solid, sure footed handling. Some of the more significant problems are as follows:
- 1993-2005 GS300/GS400/GS430 - Susceptible to an "invisible" failure of the front lower control arm bushing (#2 lower control arm), most commonly indicated by excessive tire wear and wandering at highway speeds
- 1998-2005 GS300/GS400/GS430 - "Softening" of the drivers side steering rack bushings, resulting in sloppy steering, and unstable centering at higher speeds
GS tire wear issues
Oftentimes by 40-50,000 miles, you may begin to see accelerated tire wear, especially on the inside of the front tires.
Most shops immediately give a knee-jerk diagnosis of needing a camber correction kit, but this is oftentimes not necessary, especially if you have approximately negative 1.5 degrees of camber or less, and especially if your vehicle is not lowered more than 1.5-inches. (Please see our technical section for a more in-depth explanation of negative camber vs. toe settings and how they affect tire wear on Lexus vehicles).
As mentioned in that article, the most likely cause of this tire wear is a bushing issue, specifically the bushing on the #2 front lower control arms.
Over time, the rubber in these bushings goes soft, and causes havoc with the toe settings of the vehicle. Pretty soon the car is wandering and darting all over the road, especially at highway speeds, and you are getting only 6-8,000 miles on a pair of front tires. Simply said - whatever the actual problem may be, make sure you are addressing the correct problem in the correct way.
Electrical issues with higher mileage
As with any vehicle, over time you will begin to lose conductivity with many of your GS'
electrical connections and terminals. Resistance increases, especially to the all-important ground pathways, and many of the components on a vehicle as complex as the GS begin to lose their smooth performance and reliability. Daizen Sport Tuning grounding upgrade kits alleviate many of these problems, and with their high quality fully soldered and insulated connections, will give great electrical performance for many years to come. Unline other generic and knockoff grounding kits on the market, Daizen Sport Tuning grounding upgrade kits are the original, and are the only grounding kits specifically designed for each model vehicle. Kits come complete with necessary hardware where applicable.
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Note: Each set or kit contains components to service ONE COMPLETE VEHICLE
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1993-1997 Lexus GS:
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Front Control Arm Bushing Kit
Steering Rack Bushing Kit
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In development
In development
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1998-2005 Lexus GS:
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Front Control Arm Bushing Kit (98-99)
Front Control Arm Bushing Kit (00-05)
Upgraded Sway Bar Set
OEM Sway Bar Bushing Kit
Steering Rack Bushing Kit
Rear Camber Correction Kit NEW!
Grounding Upgrade Kit
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G2-2002
G2-2002A
G2-2005
G2-2008
G2-2030
G2-2021
In development
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2006-2009 Lexus GS:
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Upgraded Sway Bar Set
OEM Sway Bar Bushing Kit
Steering Rack Bushing Kit
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In development
In development
In development
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Requires press for installation of some components
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