29 spec

29 spec

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01/12/2026

To make BIG power NA you need a Big plenum. This guy was designed to maximize air for ITBs. We saw a 10HP jump with this plenum and proper ducting over normal open throttles. And that was with the hood open. Would have been even greater with the hood closed. This can work for virtually any 4 cylinder with any ITBs. I have just a few left and they will not be made again. Jump on the website to get one now!

Photos from 29 spec's post 12/23/2025

That is my inheritance.

He has had a lot of different , , , and

Which is your favorite of these?

11/16/2025

Idk why people say you can't put a pedalbox in a s2000. I'm 6'1" and what I have done here is pretty darn good ergonomically. 🤷🏼

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