Your Manthey Performance Parts Dealer
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Unlock Your Porsche's Potential.
As an authorized Porsche Manthey dealer, Isringhausen sells and installs genuine Manthey Performance Kits for select Porsche GT models, including the 911 GT3 (992.2) and 911 GT3 RS (992.1).
Our factory-certified Porsche technicians combine decades of performance expertise with nationwide vehicle transport, making it easy for enthusiasts across the country to access genuine Manthey upgrades.
Motorsport Engineering for the Road
Developed using expertise gained in motorsport, Manthey Kits are model-specific packages designed to enhance performance while remaining fully road-legal. Depending on the vehicle, upgrades may include optimized aerodynamics, lightweight components, suspension enhancements, and other precision-engineered performance parts.
Increased downforce improves stability and control at speed, while weight-saving measures and chassis refinements create a sharper, more connected driving experience on both road and track.
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Why Choose Isringhausen?
Our Porsche-certified technicians use factory-approved tools and procedures to install every Manthey component to exacting standards. We'll also arrange complimentary vehicle pickup and return shipping, making the process simple no matter where you're located.
For 45 years, Porsche enthusiasts across the country have trusted the Isringhausen name. Whether your goal is faster lap times, greater driver confidence, or a more capable road and track machine, our team can help you select the right Manthey upgrades for your Porsche.
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Preserve Your Porsche Warranty
Manthey Kits are engineered to elevate capability without altering the core character of your Porsche.
Unlike many aftermarket modifications, genuine Manthey upgrades installed by an authorized Porsche Manthey dealer do not affect your Porsche warranty.
Contact us today to learn how a Manthey Performance Kit can take your Porsche to the next level.
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Lightweight Wheels Available
Certain models can also be equipped with Manthey lightweight wheelsets, developed in collaboration with the Porsche Development Center in Weissach. Designed to complement the added aerodynamic loads generated by Manthey components, these wheels further reduce weight and enhance overall performance.
Hours
Sales
Open - Closes at 6:00 PM
| Monday | 8:00 AM - 6:00 PM |
| Tuesday | 8:00 AM - 6:00 PM |
| Wednesday | 8:00 AM - 6:00 PM |
| Thursday | 8:00 AM - 6:00 PM |
| Friday | 8:00 AM - 6:00 PM |
| Saturday | 9:00 AM - 4:00 PM |
| Sunday | Closed |
Service
Open - Closes at 5:30 PM
| Monday | 7:30 AM - 5:30 PM |
| Tuesday | 7:30 AM - 5:30 PM |
| Wednesday | 7:30 AM - 5:30 PM |
| Thursday | 7:30 AM - 5:30 PM |
| Friday | 7:30 AM - 5:30 PM |
| Saturday | Closed |
| Sunday | Closed |
Parts
Open - Closes at 5:30 PM
| Monday | 7:30 AM - 5:30 PM |
| Tuesday | 7:30 AM - 5:30 PM |
| Wednesday | 7:30 AM - 5:30 PM |
| Thursday | 7:30 AM - 5:30 PM |
| Friday | 7:30 AM - 5:30 PM |
| Saturday | Closed |
| Sunday | Closed |
