I'm in no way shooting down the offerings from Jojo, and the fact that people wish to get involved with still producing things for these bikes.
My point is there is a deliberate slander of a particular persons product in your first post, highlighting particular words and referring to a product in a negative manner. To anyone else reading the thread for the first time, and having zero technical knowledge, will look and think, well maybe I should buy off the other guy because people don't seem to like this taffy fella, and think his product is worse.
Well its not, simple as. The truth in the matter is you havent got any testing between the 2 products, therfore your opinion can only be... Your opinion.
I am a technical engineering guy, I fully understand and appreciate engineering, and also flow patterns in to heads, I've built countless manifolds for bike carbs conversion on cars, and I understand fully, the technical aspects of carbs and the intake runners and what effect they have on a engine.
Taffy's products has had a additional process of machining, quite clearly visible in the picture below, to allow it to port match the bikes head.
I think this is a key technical aspect, and look to any engine builder/tuner, and they will tell you a smooth transition of airflow avia port matching is a long standing method of engine tuning. And although taffy himself didn't make this part, neither is jojo making his.
Both have had them made. The only difference is that perhaps taffy went to somebody to haven't CAD drawing done, as apposed to drawing it himself.
I also feel I should mention, that taffy archived a enormous power goal on a 650 racing engine, and I'm going to hazard a guess, this inlet pipe was probably fitted to that engine. (happy to be corrected otherwise) So in terms of proof, I think there will be sufficient amount to prove it's a high quality part, doing exactly the jobs Its specificied to do.
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