GT40MARINE GT-9399 Seadoo Air Intake Catch Intercooler Kit Intake/catch Can/ Tubing 215/260

( Brand: Gt40marine ), ( Manufacturer Part Number: GT-9399 ), ( Part Type: Intake ), ( Warranty: 2 Year ), ( California Prop 65 Warning: No )

Review GT40MARINE Seadoo Stage Kit Air Intake/catch Can/ Intercooler Tubing Rxt x Rxp 215/260 fits RXT RXP

The **GT40 Marine GT-9399 SEADOO Kit** is a meticulously engineered performance enhancement package designed exclusively for Sea-Doo RX-T and RXP-X models (215 and 260 horsepower variants), delivering a dramatic boost in horsepower, throttle response, and overall engine efficiency. This high-performance intake system features a **custom air intake assembly**, a **high-flow catch can**, and **reinforced intercooler tubing**, all crafted to maximize airflow while minimizing restrictive backpressure. The **air intake** is constructed from premium-grade aluminum and carbon fiber components, ensuring durability and lightweight performance, while its aerodynamic design reduces turbulence and allows for cleaner, cooler air to flood the engine s cylinders. The **catch can** is engineered with a large-diameter filter housing and a high-efficiency foam or paper element (depending on the variant), which traps contaminants while maintaining an unobstructed airflow path critical for sustaining peak power output, especially under heavy throttle conditions. The **intercooler tubing** is built with heavy-duty stainless steel braided hoses and reinforced clamps, designed to withstand the intense pressures and temperatures of forced induction setups, ensuring consistent charge air delivery to the turbocharger. Together, these components eliminate the factory s restrictive plumbing, allowing the engine to breathe deeper and more efficiently, resulting in noticeable gains in acceleration, top-end speed, and overall responsiveness. Whether cruising at high speeds or tackling aggressive maneuvers, this kit transforms the stock Sea-Doo into a more aggressive, high-revving powerhouse, making it ideal for enthusiasts seeking to push their watercraft to its limits while maintaining reliability. Installation is straightforward, with clear instructions provided, and the kit s compatibility ensures a seamless fit for both RX-T and RXP-X models, regardless of horsepower rating. For those who demand more from their Sea-Doo, the GT-9399 is the definitive upgrade for those who refuse to compromise on performance.

### **Pros and Cons of buying a GT40 Marine GT-9399 Sea-Doo Kit (Air Intake/Catch Can/Intercooler Tubing RX-T/RXP-X 215/260)**

1. **Performance Enhancement** The kit includes an upgraded air intake system, catch can, and intercooler tubing designed to improve airflow and cooling efficiency. This can lead to better throttle response, increased horsepower, and smoother operation, especially under heavy load or in warm conditions.

2. **Reduced Carbon Buildup** The catch can helps trap moisture and contaminants, reducing carbon buildup in the intake system. This can extend the life of internal components and improve engine reliability over time.

3. **Better Cooling for Intercooler** The upgraded intercooler tubing ensures more efficient heat dissipation, which is critical for maintaining optimal charge air temperatures, particularly in high-performance applications or when running turbocharged systems.

4. **Compatibility with RX-T and RXP-X Models** The kit is specifically designed for Sea-Doo RX-T (215 HP) and RXP-X (260 HP) models, ensuring a proper fit without modifications. This reduces the risk of installation errors.

5. **Easy Installation** The GT40 Marine kit is marketed as a plug-and-play solution, meaning it can be installed without extensive modifications or professional assistance, saving time and labor costs.

6. **Durability and Quality Materials** GT40 Marine is known for producing high-quality marine performance parts, often using corrosion-resistant materials suitable for saltwater and freshwater environments.

7. **Potential for Increased Fuel Efficiency** By optimizing airflow and reducing backpressure, the kit may help the engine run more efficiently, leading to better fuel economy in some cases.

8. **Aftermarket Support** GT40 Marine is a reputable brand with a customer service network, meaning troubleshooting or replacement parts are more accessible if issues arise.

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1. **Cost** The kit represents a significant investment, especially when considering the price of individual components separately. For enthusiasts on a tight budget, this may be a major drawback.

2. **Mixed Reviews on Performance Gains** Some Sea-Doo owners report minimal noticeable performance improvements, particularly in stock or lightly modified engines. The gains may be more apparent in heavily tuned or turbocharged setups.

3. **Potential for Voiding Warranty** Modifying the intake or cooling system could void the manufacturer s warranty, depending on Sea-Doo s policies. This is a risk to consider before installation.

4. **Installation Challenges** While marketed as easy, some users may find the installation process more complex than anticipated, especially if they lack mechanical experience. Improper installation could lead to leaks or reduced effectiveness.

5. **Compatibility Concerns** Although the kit is designed for RX-T and RXP-X models, there is always a chance of fitment issues if the engine or exhaust setup has been previously modified. Double-checking compatibility is essential.

6. **Maintenance Requirements** The catch can and intercooler tubing will require periodic cleaning or replacement to maintain optimal performance. Neglecting maintenance could negate the benefits of the kit.

7. **Limited Long-Term Data** As with many aftermarket performance parts, long-term reliability data may be limited. Some users report issues with durability or material degradation over time.

8. **Alternative Options** There are other aftermarket brands (e.g., Sea-Doo Performance, PowerMax, or third-party manufacturers) offering similar or more affordable kits. Comparing options may yield better value for some buyers.

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The GT40 Marine GT-9399 Sea-Doo kit is a well-engineered performance upgrade designed to enhance airflow, cooling, and reliability in Sea-Doo RX-T and RXP-X models. It offers tangible benefits for those seeking better throttle response, reduced carbon buildup, and improved intercooler efficiency. However, the cost, potential warranty implications, and mixed performance reviews mean it may not be the best choice for everyone.

For **stock or lightly modified RX-T/RXP-X owners** who prioritize reliability and minor performance gains without extensive tuning, this kit could be a worthwhile investment. For **serious tuners or those on a budget**, alternatives or incremental upgrades might provide better value.

- **If you are a performance-focused owner** who has already tuned or turbocharged your RX-T/RXP-X and wants to optimize airflow and cooling, this kit is a strong consideration. Ensure proper installation and maintenance to maximize benefits.

- **If you are a casual rider or have a stock engine**, the performance gains may not justify the cost. Instead, focus on simpler upgrades like air filters or exhaust systems.

- **If budget is a concern**, compare this kit with other brands or consider buying individual components (e.g., just the catch can or intercooler tubing) to achieve similar benefits at a lower cost.

- **Always verify compatibility** with your specific model and consult with a mechanic if unsure about installation.

Ultimately, the decision depends on your priorities whether you value performance gains, ease of installation, or long-term reliability and your willingness to invest in aftermarket modifications.

Details:

Stage 1 kit Seadoo Cold Air Intake Catch Can Kit Intercooler tubing with Tail BOV don't over pay the box brands.

specifications jetskiintakeez:

• for models: Rxt, Rxp
• for makes: Can
• brand: Gt40marine
• mpn: Gt-9399
• part type: Intake
• warranty: 2 Year
• california prop 65 warning: No

shipping jetskiintakeez:

• service: UPS Ground
• carrier: UPS
• type: Fixed
• cost: $10.00
• class: Standard
• transit: 4-9 Days

offer jetskiintakeez:

• options: Ship-to-home
• availability: In Stock
• started: March 19, 2026
• quantity: 4
• sold: 0

payments jetskiintakeez:

• wallet: Apple-pay
• credit card: Visa
• other

seller jetskiintakeez:

• city: Bonney Lake, Washington
• # reviews: 35
• rating: 92.0%

returns jetskiintakeez:

• policy: Returns Accepted
• time: 30 Days
• paid by: Seller

general jetskiintakeez:

• Parts Accessories > Personal Watercraft Parts > Intake Fuel Systems
• condition: New

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