Can you re-dye a dyed seat??

[Gnarlyscoots]

Any help or info please guys, appreciated,

Thanks 

[Waxintaxin]

you can redye it the same colour , ie black to black , but anything else forget it

[HARORIDER]

black yes,some you can bleach the colour out then re-dye 

[rollin72]

boil in clean water will take out some of the old dye

[Gnarlyscoots]

Thanks guys, I will give it a go