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Greddy Throttle body adapter - RB25DET

4 Star Rating

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Greddy throttle body adapter for RB25DET with Greddy intake plenum Adapter enable user to re-install factory throttle body instead of using Q45 throttle body.

Comes with all hardware and throttle cable bracket extension.


  1. Be a good mechanic or able to read japanese.

    Posted by Dustin Sanders on

    Ordered this alongside Greddy's RB25 front facing intake plenum. Haven't received the plenum yet because it's being sent to me direct from Greddy. The TB Adapter is packaged very well- all pieces securely wrapped inside a box, which was then packed inside another box with crumpled paper to absorb shocks. The package arrived faster than I expected- less than three business days (over thanksgiving weekend, no less!).

    As stated above, the instructions are written entirely in Japanese (except for the words "Trust" and "Greddy"). There is a single picture that accompanies each step, but the pictures are not very descriptive.

    Furthermore, the product description in the invoice lists this as a "weld-on" adapter, however, the page here on Enjuku and the pictures on the japanese instructions make no reference to welding, so I assume that to be an oversight or miscommunication. From what i can tell looking at the pictures and the bolt hole placement, this adapter does not actually require any welding to be utilized.

    I've pulled the components out of their packaging and fiddled with them, and all appear to be of excellent manufacture. The silicone of the flexible adapter is thicker than the silicone connectors of my intercooler piping, and the powder coating on the bracket looks and feels very heavy and durable.

    As with all things Greddy, you're paying not just for a top-tier product, but for their name as well, so keep that in mind.

    Product receives a four star rating for being exactly what you would expect from Greddy, and the missing star is because you expect to pay a little extra for their reputation.

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