Hey all, i know that 4:2:1 extractors are for torque and low/mid range rpm driving (daily driving) and that 4:1 are for high rpm driving (track), just wondering what people are running on there k series corollas. I have a 4k KE70 that is about to run a 3k bigport head, and I'm weighing up these two types of extractors that i can buy. Thanks :(
Ps. I'm a daily driver :P