I have found a site to purchase ($140) Progress lowering springs for my MP5. Has anyone had experience with this manufacturer? Anyone know the amount of drop to expect with these springs?
http://www.optauto.com/webstore/pro...riation=&aitem=10&mitem=10&back=yes&dept=1368
http://www.optauto.com/webstore/pro...riation=&aitem=10&mitem=10&back=yes&dept=1368