I have an 04 with H&R Race springs and still have the IRS. My question is im running all the factory ISO's but want the car to come down a lil more so i was thing about just removing the lower ISO and wrapping it with tape or putting some Dyno Mat on the lower spring perch to reduce noise. I want to know from you guys that are running no lower ISO's what you guys are putting there to reduce and noise or if you guys don't have anything there if your experincing any noises. Dont really want to remove the uppers because the upper ISO actually locates the spring to the upper perch and if removed the spring will have some play there. Let me know what you are running and if any noises? Thanks!