Yamaha 1800 / 1.8L Engine TTR CNC Billet Intake Manifold Reversible
SHIPPING - RETURNS - WARRANTY - CANCELLATION POLICY
*** Market Conditions after 2020 have changed the landscape of automotive parts. Although we try to stock 1000's of items in our multiple warehouse and use multiple distribution channels, having back-orders are unavoidable in today's market. If you are in need of a product quickly, we suggest email, message, or call us for availability so that we may explore your options.
Email: Sales@Speedzoneweb.com
Call: 407-846-8430
Text: 407-749-6314
Frequently Asked Questions
Meticulously designed using the most advanced simulation software available, the TTR CNC Billet Intake Manifold for Yamaha 1800 / 1.8L engines sets new performance standards. Featuring internal carbon fiber velocity stacks and a plenum design that maintains perfectly balanced airflow distribution, this intake manifold has been tested and refined in extreme environments, including on our own racing jet ski, the FuelTech Compound Turbo and Supercharger.
Key Features:
Reversible Design for Supercharger or Turbo: The reversible design allows the plenum to be mounted for front or rear facing throttle body, making it compatible with common Supercharger or Turbo designs.
Incredible Efficiency: At extreme high boost and RPM, this manifold has demonstrated remarkably precise airflow distribution, verified by precision data acquisition from exhaust gas temperature sensors. When EGTs are in the range of 1,450 degrees Fahrenheit, temperature fluctuations remain less than 20 degrees. This level of thermal stability is an impressive feat in high performance applications such as racing.
Power Flexibility: Engineered for use with 4 or 8 injectors, simplifying fuel system and wiring complexity. While not required, we recommend using FT injectors for optimal performance. Compatible with any injector size, select injectors based on the desired power level and fuel to supply +1,000hp.
To calculate which injector is the best for your application click here to use our fuel injector calculator.
Expanded Throttle Body Options: Compatible with the original Yamaha electronic throttle body (SVHO or HO) or the preferred Bosch Motorsports 68mm electronic throttle body, chosen by enthusiasts and professionals alike.
Advanced Compatibility: The intake manifold is compatible with OEM fuel rails when using 4 injectors. To use 8 injectors, we recommend pairing with TTR Yamaha 1.8L / 1.9L High Flow Billet Racing Fuel Rails (for 8 injectors, use Racing Fuel Rail in addition to the OEM fuel rail or use 2 Racing Fuel Rails). Drilling is required for 8 injector applications. Sealed with provided O-rings on all flanges, to ensure an airtight seal on the cylinder head, plenum assembly, and throttle body.

Our History
For 26 years Speedzone Performance LLC has been providing aftermarket car parts to Central Floridians and 1000's of customers online. What makes us different than all the other places online? We have 3 actual brick and mortar locations where were serve customers daily and find new ways to provide support and assistance to the automotive community at large. From our in house SPDZ1 Brand, to our constantly growing in stock inventory, we strive to make our customer service and ease of purchase stand out from the rest! We are also one of the largest automotive part financing providers anywhere in the United States, and continue to provide more options for our customers every year. We love what we do, and it shows in every product we sell and every new customer who becomes a part of our Speedzone Family.