I assume you mean the aluminum drive shaft, if so it depends on how you drive and what you expect that would make it "worth it"?
If you never or only rarely accelerate at "pedal to the metal" rates, or always shift at 3k rpm or so, then you will never know it's there. OTH if you does like to get going fast fast, and wind out the engine in the lower gears then you will like it...
- 2003 GT, UPR X, FRPP 24lb/h, Magnaflow, PP 70mm TB & plenum, Delta Force tuned,
Steeda UDPs, Ralco flywheel, RAM HDX clutch, 3.73s, 262 rwHP/305 lb-ft.
New ride (7/1/2013) 1998 Mercedes SL500-5.0L 32V VVT 326/347 HP/tq