BULL BOOST Polished Aluminum Performance Intake Manifold for Mazda Miata MX-5 NA NB 1.8L 1989-2005

BULL BOOST Polished Aluminum Performance Intake Manifold for Mazda Miata MX-5 NA NB 1.8L 1989-2005

Part Number: 720595369268
Brand: BULL BOOST PERFORMANCE

Upgrade the airflow and performance potential of your Mazda Miata MX-5 NA or NB 1.8L with the BULL BOOST PERFORMANCE Polished Aluminum Intake Manifold. Designed as a performance replacement for the factory intake manifold, this upgraded design features a larger plenum, oversized runners, redesigned trumpets, and a 70mm throttle body opening to improve airflow throughout the RPM range.

Designed for both naturally aspirated and turbocharged builds, the manifold's extended runners and revised plenum are engineered to improve engine response while supporting higher horsepower applications.

Key Features

• Polished aluminum construction
• High-capacity intake plenum
• Oversized runners for increased airflow
• Redesigned internal trumpets
• Designed for naturally aspirated and turbocharged applications
• CNC-machined billet aluminum flanges
• Hand-welded construction
• 70mm throttle body opening
• Compatible with stock or appropriately sized aftermarket throttle bodies
• Designed for street, performance, and racing applications
• Compatible with automatic transmission applications where otherwise applicable

Performance Benefits

The redesigned plenum and runner configuration are designed to provide:

• Increased intake airflow
• Improved throttle response
• Better high-RPM breathing
• Improved performance potential throughout the powerband
• Increased airflow capacity for modified engines
• Support for naturally aspirated and forced-induction builds

According to BULL BOOST PERFORMANCE, naturally aspirated applications may see approximately 4-10 horsepower with supporting modifications such as performance camshafts, higher-flow injectors, and proper engine tuning. Actual horsepower gains will vary significantly depending on the vehicle, engine condition, modifications, and tune.

Vehicle Fitment

Mazda Miata / MX-5 NA & NB 1.8L Applications

Please verify your exact engine and intake configuration before ordering.

Specifications

• Material: Aluminum
• Finish: Polished
• Throttle Body Opening: 70mm
• Application: Naturally Aspirated / Turbocharged
• Construction: CNC-Machined Flanges with Welded Aluminum Plenum & Runners

Package Includes

• 1x BULL BOOST PERFORMANCE Intake Manifold
• 4x 6mm Aluminum Fittings
• 1x 8mm Aluminum Brake Booster Fitting
• 4x 6mm Aluminum Plugs
• 1x 8mm Aluminum Plug

Not Included

Throttle body and fuel rail are NOT included.

Important Installation & Tuning Information

Professional installation and proper engine tuning are strongly recommended.

Depending on your vehicle and setup, MAF sensor wiring may require extension or rerouting during installation. Additional modifications, fittings, hoses, hardware, or tuning may also be required depending on the specific build.

Always verify throttle body compatibility, clearance, fuel system configuration, and all supporting modifications before installation.

BULL BOOST PERFORMANCE WARRANTY NOTICE

All warranties, claims, and product-related issues must be handled directly through BULL BOOST PERFORMANCE.

Professional Installation Available

Need installation? RPM Racing offers professional installation at our locations in El Paso, TX and Las Cruces, NM. Contact us today to schedule your appointment.