Astounding as it is that the most expensive cars on the US market today are also the ones whose owners are most likely to succumb to the lure of aftermarket upgrades, the desire to make a high-priced toy be a little cooler is hard to beat. In the case of BMW aftermarket parts, there are a couple of upgrades that are relatively easy to pull off, even for the do-it-yourself mechanic, and that boost performance, or at least perceived performance, to a level that makes the extra time, expense and effort well worth it.
As far as an easy upgrade goes, you really can’t beat the aftermarket catback exhaust for improved throttle response as well as looks and audio noise effects. The overall system weight reduction also appears to improve overall torque, resulting in at least the illusion of more power. Amidst the benefits of installing an upgraded exhaust system are minor drawbacks such as the noise level of the system, although still street legal, when driving on surface streets but the power is worth experiencing of maximum acceleration in an open course (or pseudo-open course) environment. Also topping the list of possible cons of installing certain aftermarket systems is the tendency to have to make modifications prior to installation to ensure a proper fit, or at least a fit that doesn’t need adjustment after going through several cycles. of heat
There are, of course, several systems on the market that are different in appearance after installation, most of which look amazing and fit the bill for increasing power at the mid-range level, although most won’t hold the solidity of its sound at full speed. . In general, UCC-made aftermarket exhaust systems seem to consistently meet the highest standards across the board, but of course each enthusiast should review their own research among manufacturers and consult the opinions of various mechanics. They’ve had a chance to install and monitor system performance before making a decision that will cost another couple of thousand at the expense of an already expensive toy.
The other most popular aftermarket upgrade system to add to the BMW is shock absorbers to improve handling and provide the ability to adjust ride height. Requiring a lift and coil spring compressor to make installation easy, this isn’t really a DIY project unless you have a pretty extensive garage setup at your disposal. First off, expect to pay upwards of $1500 for the aftermarket system itself, and while installation is not complicated and time-consuming, without the proper equipment at your disposal, you’ll be forced to have the system installed. by a professional.
When installing the rear suspension, it is recommended to lower the spring perch to the low to medium setting, as the rear of the vehicle sits high and you will need a starting point from which to adjust the ride height, depending on the size of the springs. wheel. you have in the vehicle. To adjust the ride height, once the wheels are back on the car, it is possible to adjust the spring hangers without having to remove the wheels again. This is done by using C-wrenches or Allen sockets on the threaded hangers until the desired front and rear heights are achieved.
