[cody]

Originally Posted by A1337STI

what are your spring rates.. and good point, lifting a rear inside under decel (or even coasting) won't be bad..

and could add a lot to the fun factor (if it loosens up the back end)

Crucial Racing is long gone, but I found the spring rates in the following post.

Specifications:

Spring rate front: 257 lb/in

Spring rate rear: 217 lb/in

Drop front: 1.25" on WRX, 12.5 mm on STi

Drop Rear: 0.9" on WRX, 9.0 mm on STi.


These are the same high performance spring rates as the highly-lauded and thoroughly-tested JDM STi "Pinks," but the Crucial springs have better materials quality, smoother progressive rates (plus are progressive both front and rear, while the JDM Pinks are only progressive on the rear, and linear front), offer slightly more drop up front for a nicer, more even stance (JDM Pinks are 1.0" both front and rear on WRX, 10mm front/rear on STi), actually come with a warranty, cost significantly less, and aren't pink. Our customers who have switched from Pinks to our springs all said that ours ride much, much smoother while simultaneously handling better with quicker response, more grip, and better control. You can't go wrong.

Wagon Owners -- these are GREAT springs for you, too! The combination of our quite stiff rates and our conservative drops means absolutely positively NO 'saggy butt' disorder that is common with many aftermarket springs made specifically with the sedan in mind. Ours lack nothing whatsoever over those 'wagon specific' springs, except for the generally wimpy spring rates offered. We know wagon owners drive hard and track their cars also! The Crucial Sport Springs will outperform those others in every category, from performance to ride to looks. By focusing on performance first and keeping our drop mild, we have created a set of springs that truly performs to their maximum potential on both sedans and wagons.

Lifetime warranty? Of course!

Fitment – MY 04-06 WRX and WRX/STi, sedan and wagon, plus Saab 9-2x. Also fits 02/03 Impreza perfectly with the use of '04+ rear top hats. Will work on Forester.

All Crucial Racing Systems parts are intended for off-road use only. Professional install recommended.

Manufactured in Germany, our Sport Springs are ISO 9001 and TÜV approved - the world’s highest quality standard for automotive suspension components. These progressive rate springs are cold rolled using special oil tempered spring steels of high tensile strength chrome-silicon (CrSi) and chrome-silicon-vanadium (CrSiV) alloys to reduce spring weight to optimize handling and response while maintaining high material strength. Finally, the springs are phosphated and powder coated jet black to ensure a superior corrosion barrier for years of service.

These are easily some of the highest quality, best performing springs available for your Subaru anywhere! Of all of our products, our sport springs have probably received the most consistently glowingly positive reviews from our customers. You will love them, too!

http://www.i-club.com/forums/suspens...talled-150421/