06 T-RED S/C GT
forum member
Except where they don’t make bilstein HDs for 05-09 anymore.
I tried to get them and no one has them in stock anymore.. I thought I read they discontinued them, but I have doubt atm. (HD versions also being the shorter ones for lowered rides.) If they were just on mega back order don’t tell me. I will be super sad... lol
Also, I went with H&R super sports with Koni yellows. I am super happy with them as I too wanted a smooth, but firm ride without harshness. The stroke is less with the car lowered, of course, but the suspension handles it well. I am very pleased.
Front lowers 1.7” and rear lowers 1.9” which is perfect for the leveled look on my car. The eibach pros take it a bit more lower in the rear, but put anything heavy in the trunk and you are not level anymore. Lol
I wasn't aware the HD's were discontinued by Bilstein? Anyhow despite the ride harshness from the Koni yellows, it's actually not really all that bad except for when going over poorly uneven road surfaces/bumps, otherwise the ride quality is smooth on well maintained, level road surfaces. What I value most about the Koni Yellows, is they significantly improve the car's overall handling especially when cornering at spirited speeds. I suppose at the end of the day, sacrificing some ride comfort in favor of improving the suspension and overall handling is a small price to pay IMO. As for the Eibach Pros taking the rear lower than 1.9"? I totally disagree, as I believe your referring to the Eibach Sportline Springs which lower the front suspension by approx 1.5" and by approx 2.0" for the rear suspension. The lowering specs for the Eibach Pro Springs are 1.3" for the front suspension and 1.4" for the rear suspension. Btw: I also have the Eibach Pro Springs on my car and they definitely do not lower my rear suspension at either 1.9" or 2.0" The max drop is at 1.5"
What size wheels and tires are you running? That will be the biggest factor in ride quality.
Not necessarily, as I went from 275-35-20" tires on 20x9.5" wheels to 285-40-18" tires (rear) 255-45-18" tires (front) on 18x9.5" wheels. Despite the 18" tires providing a taller sidewall over my previous 20" tires, it definitely wasn't what I considered as the biggest factor in ride quality. IMHO the biggest factors are type of dampers, spring rates, sway bars and LCA's along with what size wheels and tires are being ran that affect ride quality the most, at least from my personal experience anyhow
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