Eibach Pro-Plus Kit Review - Subaru WRX Forum
 
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post #1 of 2 Old 08-31-2010, 11:47 AM Thread Starter
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Eibach Pro-Plus Kit Review


This review is the second part of the install portion that can be found here.
Eibach Pro-Plus Kit Install & Review - Warning: bandwidth hungry, lots of photos

Initial impressions, I immediately noticed an increase in NVH (noise, vibration, and harshness). The car defiantly feels more stiff. More vibrations are transmitted to the cabin that you feel over each crack and bump in the road. Personally, this is not a bad thing to me. Just like people and cars, roads have their own personalities and characteristics. After driving a particular route over and over again, you'll begin to feel comfortable with the road. Cracks and new bumps you feel are clear indications of the road deteriorating or shifting due to weather and old age. The increased NVH is something most get used to over a few weeks.

If you're a person that already cannot stand how "rough" the WRX or STi is stock, this defiantly is not a mod you're going to enjoy. Any benefits will shadow your feelings toward the decrease in ride quality. Again, if I want a soft riding car, I'll buy a Camry. The annoying points of having a lowered and stiffer suspension setup are potholes, speed bumps, and getting up and over steep inclines or dips. Small potholes that normally you wouldn't think twice after running over feel like a small crater as the change in your change tray shake. You'll have to start learning how to take certain roads slower or at a 45 degree angle as inclines could cause you to scrape or some will have to avoid particular roads entirely.

Of course, no one sane would take all these downfalls without the advantages. I will say this to start. This car is so much fun to drive now. I get frustrated in traffic or a vehicle in front of me is in my way because I just want to take every turn at speed. The car effortlessly glides thru them as if the the Subie was a rollercoaster following a track.

I've been driving it for at least a week trying to push the limits on every day driving and taking back roads here and there. But, I got my buddy Mikey to give me a hand. He rally's every now and again and participated in many more autox's than I have. We decided to conduct or test on a back road from our small town in WV to an even smaller town in PA. There are plenty of twists and turns - one of my favorite roads.

Test was done on Falken Azenis RT-615 225/45R-17 on warm dry road.

I started off the run hitting the turns as much as I felt comfortable with. Having a 30-50 foot drop around some turns wasn't the most reassuring feeling, and it's been several months since I last drove on this path. My buddy gave me a few pointers as he scouted the road for debris for his run. Car felt great. There was little body roll, and the car handled each turn fabulously. There wasn't a point in time where I thought I was going to lose control, realizing I probably wasn't even pushing the car hard enough.

When we hit Point Marion, PA, we pulled over and switched. Mikey has owned quite a few Subarus and competed in enough sanctioned events that I was quite comfortable handing the keys over. I gotta say, he beat those turns mercilessly. Flying around those turns was an adrenaline rush. The most fun was probably hitting the switchback. The car hit the 1st turn, and swung around the second portion of the S like clockwork. The handling was very neutral, unlike my setup before with just a rear sway bar. You can almost feel all 4 wheels pushing against the turn.

Sadly, even with the aggressive driving we did that day, we never pushed it far enough to ever think we were going to break traction. It probably wasn't until several days later I was coming up past a turn, I decided to throttle it a little harder. I could feel the tires breaking away slightly, but i felt in control. Finished off the turn and the car came around without a problem. It almost felt as if the tires were biting into the road harder in the short time I felt the tires start to lose grip.

Needless to say, I find it hard to see someone not impressed with this setup. The only thing that would complete this package is a set of shocks. Keep in mind, I do have a few more suspension pieces already installed on the vehicle, but this kit is most everything you need. Pick up an anti-lift kit down the road, and you're ready for the track.

Feel free to visit the Eibach site for more information here: http://performance-suspension.eibach.com/

Jon
"We live for a good time, not a long time."
RIP Colin McRae
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post #2 of 2 Old 10-11-2010, 12:18 PM Thread Starter
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Update: Just had the pleasure of doing a road rally from Morgantown to Seneca Rocks this past Sunday. 5 hour 45 minute round trip and 218 miles total. Route can be found here.

MapQuest Maps - Driving Directions - Map

So much fun to drive. The car felt stable and the setup is meant for this type of driving. Car is very neutral in taking the turns. Highlights include taking a fast left turn on a connecting road which ended with quick drift with all 4 wheels pushing out together only to regain traction coming out of the bend. No point in time did I feel like I was losing control of the vehicle even though I clearly past the limits of the suspension and tires.

Two incidences where the back end felt light and started to kick out during a spot of S curves. All I had to do was back off the throttle for a sec to regain traction and mash it back down to finish the turns. A lot of this had to blame with boost creep. Constant acceleration thru the turn, this would have never happened.

And the scariest was entering a very large U shaped turn way too fast. Experienced slight understeer. I swore I was going to go into the other lane. As soon as the car's weight shifted and dived forward from the heavy braking and touched the yellow line and the tires bit and I was able to hammer it out. Very pleasant surprise to know even when the limits are broken, it's quick to regain control. Because other cars were following me (7 total in the line), my buddy with a stock suspension behind me did end up in the other lane. Thankfully, there were no vehicles oncoming. Please be safe out there, and have fun!

Jon
"We live for a good time, not a long time."
RIP Colin McRae
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