I'm sure have a different brand of rear shocks is better than having a bad set of shocks on the rear. I'm sure you will be fine.
01 325iT ZSP - Koni - Hotchkis
01 525iT - TiAg - sport susp - stock for now
04 Chevy Suburban - Modded - My Daily
08 Chevy Suburban - Modded - Wife's Daily