Review on Energy Suspension 4 18116G Hyperflex Master by Jesse Stewart

In most cases, upgrading the polymer suspension or engine mounts will only provide stiffer handling and is not worth it in on-road use. However, the bushings on these heavy vans tend to fail quickly, resulting in poor handling. As it already drives hard (1 ton panel van) the difference in this application is negligible. So it paid off for me to have harder compounds to make sure it lasts.