I'm glad you came on and posted this. I also thought a six speed might be great, but I really learned that I don't need it at all. The five speed has pretty darn good ratios.
Maybe a taller final drive with all this power I have, but that is it.
Former owner of '99 CSVT - Silver #222/2760
356/334 wHP/TQ at 10psi on pump gas!
See My Mods
'05 Volvo S40 Turbo 5 AWD with 6spd, Passion Red
'06 Mazda5 Touring, 5spd,MTX, Black