H&R + koni yellow = dump

[gsxr141]

it looks like the "sport" springs may be progressive, but i can't find anything on the "race" springs.

 

[supraguru05]

My opinion has been that the H&R springs lower the car enough that I would recommend getting a threaded body shock with more travel to lower the car that much. that being said I ran Koni-Eibach for 5 years and never had an issue. I had the shocks at full stiff all the way around. I actually had a shock replaced under warranty because I bottomed it out and broke the adjuster internally

 

[IJ.]

My opinion has been that the H&R springs lower the car enough that I would recommend getting a threaded body shock with more travel to lower the car that much. that being said I ran Koni-Eibach for 5 years and never had an issue. I had the shocks at full stiff all the way around. I actually had a shock replaced under warranty because I bottomed it out and broke the adjuster internally

Had the same thing happen about 300Km's from home

Not a fun pogostick ride home, mine was the stock bumpstops split and fell off so I replaced them with long progressive Porsche ones problem solved.