I have the 60mm Tb on my 84 ZXT and it did give a quicker throttle response but I would not say it increased HP. However I do like it better, I have a Pathy intake to go on my car after the stroker bottom end goes in. I bought my intake from one of those online junk yard sales places. I think I paid $90.00. I will tell you this, the 240SX Tb will work but I used a 90-92 nissan Stanza TB. They are identical except the water inlet and outlet are on the bottom like the original, the 240 one is on the top. You can still make it work but the Stanza looks alot cleaner. But to answer your question, I bought my TB for $25.00 at a junk yard, It was worth every penny on my stock intake that I matched ported myself. Enjoy.