Hey guys, im a bit new to cars and modding in general but i was wondering if anyone has heard of replacing the stock 5 speed manual trans for a 7 speed manual transmission? Obviously its a hypothetical and im sure would be a completely custom job, but i was wondering if it was at all possible, and what the upsides to having more gears would be? My daily driver is an 02 convertible gt 4.6L manual and to me more gears=better power over more speed ranges, and (more importantly for a DD) better gas mileage. Correct me if i'm wrong