After finished the power to master the output characteristics of the transmission performance is the focus of the project,coilovers uk but also in the BMW world which, gearbox and rear differential is most easily achieved by upgrading the flow of parts, as long as the M50 / M52 / M54 / S52, six Cylinder engine, gearbox all can share, so in addition to E46 three series, even the E39, E60 and other five series RV can be a stream with an object, to find the foreign exchange component is also not a problem. In the gearbox of the most often heard is that the so-called Big Five-speed with the fifth two-speed gearbox, the so-called fifth speed at which it is with E36 in 318,320,325 ordinary cars, etc., in terms of gear ratio and 328, and Five-speed gearbox is identical on the early M3, the only difference is that the Big Five high-speed internal gear strength, overall larger, can withstand high power output, durability is also better.

Finally, 1997 is the most advanced European regulations after the last E36 M3 Evo models, which is generally known as the EU regulation 321 riders, why has this nickname because S50B32 engine is the last of the original M3 Evo would have had on the 321hp powerful performance, and is equipped with a six-speed manual transmission with, but the number of the car in Taiwan is relatively rare, if it is by the introduction of genuine distributor cars is precious, (In contrast, the original impetus early M3 data Therefore, the EU regulation nickname 286hp M3 286), either five-speed or six-speed gearbox, basically almost the same five-speed gear ratio's, and not because of the six-speed and relatively dense teeth, both five-speed gear ratio are 1.00, the only difference is 0.83 over the six-speed gear ratio can be used to run speed, too much for a high-speed cruise of a file can be used, in other words, if it is often run mountain or track users, volume and weight Smaller five-speed manual will be slightly upper hand.

As part of the final gear ratio transmission with front-drive different, to change is to accelerate the performance of the rear differential gear ratio on the market, and in the most sparsely 2.93 gear ratio on 328 models, saab 9-3 turbocharger unless modified turbo or supercharged high-powered car It is not recommended to use. But the other hand, if it is like to run to accelerate or friends on the Hill should choose the most close-ratio of 3.91, after poor Fengyun 325 and 328 mounted on the US regulations, "since the row" models. If the four-cylinder 318 cars with the stream after 4.44 "from the row of" differential, the difference between the original hand row 318 for the broader market after the 3.38 gear ratio.