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Juiced Hybrid's Chassis Stiffener Kit (2004 -2009 Toyota Prius)
Improve Prius Ride Quality
Improve Fuel Economy and Lower Emissions

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Increases MPG and Peformance!
List Price $141.70
Sale Price $109.00
You Save $32.70

Product Code: JH-CHASSIS-KIT

Improve the overall ride quality and handling of your Prius with the chassis stiffener. Our chassis stiffener provides a rigid framework under Prius to eliminate chassis flex, ensuring correct suspension geometry at all time. It bolts directly to the sub frame to further stiffen the uni-body. In Green.

Stiffen the complete sub frame of your Prius with this bolt-in Stiffener
Sometimes you might notice your car feeling a little unstable on the freeway under certain conditions such as high winds or being passed by another car. The Prius Uni-Body tends to flex under many driving conditions and our chassis stiffener greatly improves the Prius.

Your car will feel more stable and solid, turn in more accurately and corner more quickly. Finished in a green anodized in Juiced Hybrid Green. High-grade fasteners and instructions are included.

This is a bolt-on item manufactured to OEM standard and is as simple as bolting to the sub frame. We supply 4 stainless steel supplied bolts and washers. An OEM look and fit. Takes minutes to install the plate. Easy, detailed instructions are included with your plate.

  • Engineered and Manufacturer at a ISO 9000 Facility
  • Manufactured at world class GREEN facility in Silicon Valley
  • Track Tested and Engineered at Sears Point - Sonoma California
  • Stronger and Lighter than the competition
About STG Machine JuicedHybrids' Green Manufacturer
Founded in 1987 STG Machine is an environmentally progressive organization, They have constantly strived to acquire new technologies to enhance the way they conduct business.

Below are a few of the steps they have implemented over the years;

  • During 2004 STG installed a 32kw solar power system on our roof to reduce our dependence on the grid. The 220 panels also allow us to produce our own power and this is returned to the grid for use by consumers on the weekends / holidays when the plant is closed.
  • In 2002 we acquired the first out our two hybrid delivery vehicles, which now have a combined mileage of over 385,000 miles. These cars can average 45+ miles per gallon on in-town deliveries.
  • Since the firm was started STG has always recycled all scrap material chips and extra material back for reprocessing. The same method is used for our waste coolants & oils, which are sent to plants to be used as fuel to generate power.
  • STG became ISO registered in 2001 improving our business philosophy and methods in our daily routines. We were one of the first shops in the area to acquire this status.

Average Customer Review: 5 of 5 Total Reviews: 20 Write a review.

  0 of 0 people found the following review helpful:
Chassis Stiffener November 25, 2015
Reviewer: Blake from Novato, CA  
I spoke with Paul at He listed to my issues and sent me an E-mail of all the parts I needed. I purchased the Stiffener, Euro Suspension kit and stabilizer bar. They were here with in 3 days and install a couple days later. WOW What a difference.! get a better ride and improve your handling on the busy freeway system of the San Francisco Bay Area. Great upgrade

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  0 of 0 people found the following review helpful:
Very pleased - Happy Prius January 16, 2015
Reviewer: J Lin from San Diego, CA United States  
The Chassis stiffer kit really makes a noticeable improvement in the ride quality in the Prius. I'm actually surprised that Toyota did not utilize this design as part of the original layout of the vehicle since it makes such a difference in the overall handling of the car.

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  0 of 0 people found the following review helpful:
Amazing difference April 10, 2014
Reviewer: Anonymous Person from CHRISTCHURCH, CANTERBURY New Zealand  
I must say I was sceptical about this product but was impressed first with the quality of manufacture but then when it was on the vehicle the difference is really noticeable. Packaging could be improved for overseas as the kit was about to head out the end of the bag.

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  0 of 0 people found the following review helpful:
Cassis Stiffener Kit March 14, 2014
Reviewer: Ken Nagel from Huntingtown, MD United States  
Well engineered and quality product.  Shipping was fast.

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  1 of 1 people found the following review helpful:
Fantastic Suspension Mod November 10, 2013
Reviewer: Alexander T. from Alexandria, VA United States  
I bought the chassis stiffener to hopefully help with the prius being thrown around by high winds at highway speeds. Man does this help. It all but eliminated the wind effect, so my highway cruising is much more relaxing.

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