Shocks and struts are terms often used interchangeably. Both are main parts of your vehicles suspension system, but each with different functions. Your struts hold the body of your car off the ground. They also incorporate assembly parts, such as the coil spring and the shock absorber. Your struts will also affect your 2015 BMW 335i alignment and steering. Additionally they provide support to the suspension springs. Shocks on the other hand absorb bumps on the road. Without shocks, your vehicle would still be able to move, however there would be plenty of bouncing.
Your factory shocks & struts are not designed to handle harder driving conditions. Over time, aggressive use can eventually cause damage to your factory shocks and struts. Performance shocks & struts are designed to better handle the more spirited drivers. Pairing shocks & struts with high performance coil overs, will give you the most optimal ride.
If you have any questions about shocks or struts reach out to one of our experienced representatives and we can help you make a more informative decision.