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NB (98-05)
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Integral Kobe N1 Spec Muffler Ver3
$974.99Best sounding exhaust from JAPAN made by Jet's. Known as one of Japan's sportiest sounding exhaust for NB Miata. This exhaust gives a really nice sound to NB8C engines. Please note that there might be an extra fee to ship this product to some countries due to Japan Post EMS size limitations. Read more. Please note that there might be an extra fee to ship this product to some countries due to Japan Post EMS size limitations. Read more. Learn More
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Jenvey Individual Throttle Body (IRTB) Kit
Regular Price: $1,999.99
Special Price $1,749.99
Product made by Jenvey. Ideal for competition use where good mid-range and low end torque will be required. It is the ULTIMATE naturally aspirated engine modification, gives highest power as well as best throttle response you can have. For optimal gains, we recommend using our Injectors (21lbs/hr - 225cc/min).
2015 UPDATE : Kit now comes pre-assembled
Learn More
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Jet Stream Intake Funnel
$449.99This is an intake funnel made by Jet Stream that uses a RAM style funnel to provide cold air directly into the OEM airbox. It’s designed for both NB1 (1998-2000) and NB2 (2001-2005). It’s perfect for those who are in a class that requires keeping the OEM airbox. Learn More
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Jet Stream Side Air Dams
$174.99Product by Jet Stream to help bring more air to the engine bay at high speed. The purpose of these items is to bring air to the airbox. The duct (75mm) is not included with the set (it’s a do it yourself). Learn More
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Jet’s Beat Sound Muffler
$874.99Sports exhaust for the NB Miata made by Jet’s Integral Kobe. This muffler uses a unique pipe layout to create the signature Jet’s high pitch exhaust note, while keeping volume at a lower level. This muffler has the Jet’s logo on the tip. A great muffler for street use! Learn More
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Joy Fast Cam Gear Bolts
$74.97Cam gear bolts for the Mazda MX-5 Miata NA and NB (1989-2005) from Joy Fast. The Cam Gear Bolts are a cool cosmetic upgrade for the cam gears meant to act as engine bay dress up. Joy Fast has designed the bolts to work with enthusiasts who have taken the time to cut the front of the valve cover off. Sold as a pair of stainless Allen head bolts. Learn More
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Joyfast Fujiyama Valve Cover Bolts
Regular Price: $59.99
Special Price $44.99
Stainless steel (rust proof) valve cover bolts made by Joyfast for the B6 (1.6L) and BP (1.8L) Mazda Miata (1989-1998) Engine. They are made by a Japanese craftsman and will give a beautiful, neat and clean look to the valve cover area of your engine. Learn More
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Jubiride Mesh Filters
$104.99Product from JAPAN made by Jubiride. Does not reduce the airflow by much and prevents getting dirt inside the engine. Fits most carburetors (including Jenvey IRTB Kit). Learn More
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JUN Auto High Pressure Radiator Cap
$59.99High pressure radiator cap made by JUN Auto to give a nice touch to your MX5/Miata’s engine bay, but also helps the cooling efficiency of the system because of the higher pressure rating versus OEM unit. We recommend pairing it with an upgraded radiator and new/upgraded radiator hoses to avoid failure. Learn More
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Kakimoto Hyper Fullmega N1 + Rev Exhaust
$924.99The popular Fullmega N1 + exhaust has been reborn by Kakimoto Racing of Japan and it’s now available for the NB (1998-2005) MX-5 Miata. It started as a full on racing model and the Rev model has been designed to use in the streets (meets Japan’s JASMA standard). It was a tricky thing to create a race muffler that keeps the torque at low speed and high response as well. Learn More
Established in 2007, REV9 Autosport has sold highest quality parts to thousands of roadster fanatics over the time. Known as the reference for rare JDM parts, we also offer quality items from USA, UK & Italy.
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