DESCRIPTION
Improve your Porsche's handling performance, steering precision and gearbox shifting with a Powerflex PF57K-1001 bushing. PF57K-1001 and PF57K-1001BLK fits Porsche 996/986 and 997/987 models in Position #2F/5R in the Bushing Position Diagram below.
*This kit fits both front and rear of the 986 and 996. But only fits the rear of all newer chassis where applicable*
Not wanting to fit new bushings to old control arms, or can’t justify the expense of buying new arms with rubber bushings - just to immediately replace the rubber with our Powerflex bushings for better longevity and performance? We now have a solution.
A high-quality, cast control arm pre-assembled with our signature polyurethane bushings for a ‘fit and forget’ product. Designed specifically for high performance and convenience of use with the added peace of mind of our Lifetime Warranty!
Street Bushing Features:
- Street Bushings come in Yellow (70A durometer, 25% stiffer than original) or Purple (80A durometer, +30% stiffer than original) based on location
- Direct replacement
- Engineered using the highest quality polyurethane to minimize noise, vibration and harshness
- Stainless steel machined components
- Lifetime limited warranty
Race Bushing Features:
- Black color bushing (95A durometer, +80% stiffer than original)
- Direct replacement
- Designed for track use
- Engineered using the highest quality polyurethane to minimize noise, vibration and harshness
- Stainless steel machined components
- Lifetime limited warranty
Note: Bushings are sold in the number required at a specified location. Purchasing quantity 1 will include enough bushings for the left and right location for a single vehicle.
Bushing Reference Part Number:
98133105301 OEM Part Number: 99733104180 OEM Part Number: 99634105318
Bushing Position Diagram:

TECHNICAL DETAILS
PRODUCT WARRANTY
PowerflexUSA's limited Lifetime Warranty reflects confidence in both their products and also the history of fanatical customer service.
PowerflexUSA does not have a time-based warranty policy because issues that customers have are always an opportunity to learn. Where a problem has occurred due to incorrect fitting, we have always asked if the reason for the error was due to poor fitting instructions. When a part fails, we strive to understand if the part is being used outside of its design parameters. And like all manufacturing we have had the occasional material quality issue and in these cases, we have always replaced parts without question.
For warranty service please see the below instructions:
- Contact Powerflex USA directly via their online Warranty Page.
- Note the ViVA Performance Order ID associated with the bushing; including details of the installation and any changes made, with photos of the failed part.
- The Warranty only applies to parts purchased from ViVA Performance.
- The Warranty is limited to the replacement of suspension bushings supplied.
- There is no Warranty coverage for consequential part failure or labor for installation.
- The Warranty applies to the original purchaser only, no exceptions.