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?
i have read about normaly aspirated 20B. how durable if take out the turbo system and use throttle body each rotor. and how about the fuel cosumtion? is there...