A vehicle's alignment is the most important aspect in regards to handling performance. Naturally, the alignment will fall out of OEM specifications when subjected to road imperfections. Also, lowering a vehicle will bring a car out of OEM alignment specification. Majority of OEM suspension components do not have proper toe, camber, or caster adjustments. An unaligned vehicle can cause poor handling characteristics and premature uneven tire wear. *Godspeed / Rev9 provides 6 months warranty on their parts and 1 year warranty on all coilovers kit by Godspeed, However the item must be installed by a professional in order to qualify for warranty replacement against defects, a receipt from the shop or copy of a ASE license of the mechanic or a copy of the business license can all be accepted, pl.