I was wondering about getting the Swift Sport Mach springs for the coupe and putting them on my 05 Sedan Sport. I read in the suspension FAQ that they are softer than our OEM spring rates. What I'm wondering is what are the consequences of going with a softer spring rate? Thanks!

 

I was looking at these too. I think they will lower the sedan 1.9" front and 1.6" back, which is a little extreme for me. I like the spring rate though. I did a search and found that most (if not all) users are very happy with the ride from these.

 

Well these are for the Coupe so it would only give us Sedan people an additional .5" drop. Giving us 1.4" and 1.1" which sounds pretty good. My only concern is that they are softer than OEM. I'm not sure what happens or what the consequences are with having springs that are softer. I was recommended Swift from a buddy of mine that has some pretty good experience when it comes to cars.

 

They have a softer spring rate for the coupe crowd, but if you don't have sport suspension on your sedan the spring rate is almost identical.

Oem linear springs
G35 sedan's with non sport
Spring rates: Front: 283, Rear: 308

Swift G35 coupe linear springs 1”/.6” drop on G coupe, G35 sedan drop will be higher)
Spring rates: Front: 280, Rear: 314