i just new here, just want to ask all sifu here, can 6speed gear box install in stock 4afe engine ? 1 mean black top 6speed gear box. if can, will it better? did anyone done before? how much it cost?
Need your opinion on this problem i have on my rx7 FC. The car cannot maintain its boost pressure, once it hit its cap (0.8) the boost needle slowly dwindles down, and when i shift into...