I blew out my front driver side as was wondering how strict they are about replacing them? I know it states you need a receipt but it has been 5 years

 

I doubt the warranty is anywhere near 5 years, and if it is, you'd obviously need proof of purchase. You'll probably just have to buy the replacement.

 

what springs

 

you should be happy they lasted five years. time for new ones

 

If you have your receipt and didn't "unreasonably" abuse them then they will cover it but your car may be out during he repair...

 

no receipt and I used those stupid ground control coilovers

 

Ground control and Koni os prolly one of the best setups u can have.....in fact Ground Control only really recommends KONIs and GC and Koni have been partners in suspension for a while....but if you go to low they may not cover the warranty

 

Q: What is theKONI warranty? How do I go about getting replacements?

A: The KONI warranty is a lifetime warranty to the original purchaser against defects in materials and workmanship for as long as you own that car registered for street use. The warranty does not cover damage to the parts caused by misuse, misapplication, installation, motorsports, etc. The warranty does not include mounting bushings. If you determine you have a defective damper you can either contact the company which you purchased the unit(s) from or contact KONI North America directly at warranty@koni-na.com or 859-586-4100. To process your warranty, we will require a copy of the purchase receipt and a vehicle registration. We will generate a return goods authorization (RGA) and can replace the dampers in advance at your discretion. For more specific information about the warranty see our warranty form.

taken from KONI-NA.com