Like the title says, I'm looking to get a 2.25" ID or 2.5" ID, 4" height, 650lb/in, barrel spring. I would prefer eibach, knowing ground control has this exact spring for the rear springs on E30 coilovers. I'm just trying not to spend $150 for two springs, and more so $40-$80 for both. Let me know what you have and price!