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What size koni's fit my car(03 civic ex)50 or 55mm
And are they really worth it?

 
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55mm

yes

 
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55mm for 03 and no they are not worth it.

 
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thanx

 
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ive had konis with ground controls since 2002 and never had a problem.
i had 1 (the driver rear) blow but that was it in 4 years.. so i say they are good.

 
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will the 55mm fit my 05 civic lx?

 
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The only civics that use the 50mm insert are the 01's and some of the 02's. every thing else uses the 55mm insert.

 
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not worth it. I thought about it and i decied not to do it.

 
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Yeah.... those of you who don't think its worth it, evidently don't have a use for them.

 
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I feel they ain't worth it. I know i have replaced mine about 6-7 times maybe more i lost count. they are junk. they last as long as stock struts when the car is lowered. The people at the Koni warranty department told me they are not made for lowered cars. I just wish i would have known that before buying them. I guess i don't have a use for them they didnt last long enough for me to make it to the track at Miller Park to do some Autox.

 
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yes 55mm for 05 civic

not worth it for you ppl who wont use them to their potential

 
Rep Power: 380

Funny I 've had one set on my car for the last three years and havnent had a single problem... and thats three years of Daily driving, Autocross and open track... I'm not exactly nice to my suspension...

question, how low do you have your car droped?

 
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I had it on H&R springs. and changed it to neuspeed thinking i needed a stiffer spring but the same **** happened. I'm thinking on ordering the progress full coilovers. what do you think of them? do you think they will handle good on auto x?

 
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Ive had mine since early 2003 and still work great. Night and day difference in handling.. well worth it IMHO.

 
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once again, Freaky... I've had eibach sportlines on my konis for the last three years.

Progress makes some good stuff, problem is the dampers are not user adjustible.... so you're stuck with a fixed damper rate unless you ship them back to progress for re-valving. it would be a bit of a handycap for compitition, as you cant easily fine tune the cars handling.

 
Rep Power: 256

hey zzyzx, i'm also riding on eibach sportlines. i know that eibachs are the best, or to my knowledge, but never new what the spring rate are for these things. any idea?

 
Rep Power: 380

They are progressive rate springs, so there's no "fixed" spring rate, just a range of spring rates as they compress. But, Eibach doesnt release that info any way. All I know is that they are WAY too soft for compitition (I hit the bumpstops on the nose in sweepers) but then thats why a set of Ground Controls are my next addition.