Description
Performance Street 72A Polyurethane Left Engine Mount Insert for Mitsubishi GTO / 3000GT / Dodge Stealth / GTO Spyder / VR4 Spyder
Elevate your Mitsubishi GTO / 3000GT / Dodge Stealth / GTO Spyder / VR4 Spyder with Mad Polly’s Performance Street Engine Mount Inserts. Proudly Australian-designed, owned, and manufactured, these mounts are crafted from premium, polyester-based polyurethane, trusted for durability and comfort. Engineered for drivers seeking a balance between performance and everyday usability, these mounts deliver stability, longevity, and smooth response on the road.
🏁 Key Benefits
- Enhanced Performance with Comfort: Our polyurethane mounts provide stability and reduced engine movement without the harshness of solid mounts, making them perfect for daily driving. Enjoy a responsive driving experience while maintaining a comfortable ride.
- Proven in Real-World Applications: With a carefully balanced design, Mad Polly mounts reduce engine and driveline flex, offering improved throttle response, smoother gear shifts, enhanced traction, and better steering control for your day-to-day commutes.
- Built to Last: Made from premium, Australian-designed polyester-based polyurethane, crafted from locally sourced raw materials. Engineered to withstand the demands of Australian roads and weather, this polyurethane resists direct sunlight, petroleum, and oil products. Tested to endure continuous exposure without degradation, it provides unmatched resilience and longevity.
🔍 Those other poly mounts you were looking at…?
- Have you checked if they use polyester or polyether, where their material comes from, or what grade it is?
- Not all polyurethane is made equally.
- For the best in quality and durability, always choose Australian-based polyester polyurethane material.
💰 Smart Investment
- Premium Quality at Affordable Pricing: Positioned below imported competitors, delivering exceptional value for high-quality performance.
- Long-Term Durability: Superior durability means fewer replacements, reducing long-term maintenance costs.
- Enhanced Resale Value: Adds value to modified vehicles by improving drivetrain stability and overall performance.
- Prevents Costly Drivetrain Damage: Minimizes drivetrain wear and tear from excessive engine movement.
📊 Proven Results
- Up to 50% Reduction in Engine Movement: Reduces excess movement, offering a stable and controlled ride without the rigidity of race mounts.
- Daily-Driver Friendly Stability: Balanced design for comfort and responsiveness.
- Temperature Resilient: Successfully tested from -20°C to +120°C, ensuring performance in diverse conditions.
✅ Our Promise
- Lifetime Guarantee Against Polyurethane Failure: Built to last with a lifetime warranty covering polyurethane failure.
- Australian-Based Customer Support: Friendly, knowledgeable support from our team based in Australia.
- Satisfaction Guaranteed: We stand behind our products—your satisfaction is our priority.
🔧 DIY-Friendly Installation
Mad Polly’s Performance Street mounts are designed with the DIY enthusiast in mind. No hydraulic press is needed! To install, remove the OEM rubber from your existing mount casing while leaving the metal ring pressed in place. This design makes installation accessible to those without advanced tools, though some effort may be required to extract the rubber inserts.
🔧 Installation Information
Mad Polly mounts are designed with a slightly larger crush tube hole to allow easier alignment during installation. Due to the design involving the removal of the OEM rubber inserts (while retaining the original metal casing), fitment may vary slightly across different vehicles. Once bolted down, the clamping force secures the mount tightly, ensuring stability under extreme torque.
⚠️ Important Installation Notes
- Check Dimensions Before Ordering: Vehicle variations can affect fitment. Please verify dimensions below before ordering to ensure compatibility.
- If you are unsure how to do this it would be recommended to give it to your mechanic for them to do.
- New crush tubes are supplied with the poly inserts, the OEM crush tubes are not used.
Remeber to LEAVE THE INNER METAL RING IN
Simply heat up or cut out the original rubber, knock out the OEM rubber including the crush tube or cylinder, then replace it with our Mad Polly high performance insert.
* Please watch this video below for instructions on how to take out the original rubber insert and replace it with our item…
📐 Technical Specifications
| Mount Location: | Left (RHD Passenger Side) |
| Mad Polly Code: | MPSGTO3 |
| To Suit OEM Part Number: | |
| Insert Diameter: | 94.5mm |
| Engine Mount Inner Width: | |
| Crush Tube Length: | 93 x 12.5mm |
| Uses OEM Crush Tube: | No |
| Slotted: | No |
| Colour: | Red |
| Product Series: | Performance Street |
| Shore Hardness: | 72A |
| Material: | Polyester based Polyurethane |
🚗 Vehicle Compatibility
- Make: Mitsubishi
- Model: GTO / 3000GT / Dodge Stealth / GTO Spyder / VR4 Spyder
- Engine: 6G72
- Transmission:
- Mount Location: Left (RHD Passenger Side)
- Years: 1990-2001
🇦🇺 Proudly Australian-Made and Owned
Every Mad Polly mount is 100% designed, manufactured, and owned in Australia, from the raw materials that make up the polyurethane to the final product. Our polyester based polyurethane material is developed by Australian chemists and sourced locally, ensuring top quality while supporting local Australian industry. By choosing Mad Polly, you’re not only investing in premium durability but also in true Australian craftsmanship.
Your purchase is greatly appreciated and helps support Australian businesses and families—from us at Mad Polly, to the team that pours the poly mounts, the machinists crafting the crush tubes from Australian steel, the skilled chemists formulating the poly material, and even our Brisbane based web hosting company. We all thank you for choosing Mad Polly and supporting local Australian industry.
🔄 Looking for Race-Level Performance?
If you’re seeking an even stiffer mount for high-torque or track applications, check out our Competition Race Series (92A), designed for serious racers and high-performance builds.
Join thousands of satisfied drivers and performance enthusiasts who trust Mad Polly for their critical drivetrain components. Proudly made in Queensland, Australia.
