Alot of the clunk is from the mt82 itself, and the only way to get rid of it is.....tranny swap. That being said, the 1-piece is a nice mod that doesnt/shouldnt void your warranty. However, I wouldnt do it on a lowered car, unless i was ready to invest in the rest of the suspension and to deal with the added NVH that goes along with the suspension upgrades. Mostly an adjustable UCA to correct pinion angle will add some NVH, and DSS advises customers with "issues" to set their pinion angle to 0. Also, if your pushing over 600 rwhp than a 1-piece and safety loop is mandatory.