Got the larger flapper from Forced Performance today
Is there any write-ups on how to install it?
Im pissed... If I would have known exactly what I was getting I could have Made myself one at work, Im a machinist at a machine shop. Maybe Ill start making my own and sellin 'em for $10 less than FP does :thumbsup

do it, i'll need one. :-)

Im going to take it to work tomorrow to get some measurements off of it so I can make up a blueprint.
Anyone know of a write up on how to install it?

You could try searching/posting on the more 4G63 friendly forums. I don't think too many here have done anything like that other than maybe Jeff and possibly Saberkhan.

according to VFAQ.com To remove the stock valve, you have to grind off the top of the stem where it is peened over the washer. This makes the stock valve unusable in the future unless you weld it to the washer.

http://www.vfaq.com/mods/20G-mods.html
this shows how to remove and install a new flapper, hope that helps

Originally posted by SILVERNT
according to VFAQ.com To remove the stock valve, you have to grind off the top of the stem where it is peened over the washer. This makes the stock valve unusable in the future unless you weld it to the washer. http://www.vfaq.com/mods/20G-mods.html this shows how to remove and install a new flapper, hope that helps

Kick ass man! Thats just what i was lookin for, I thought i seen it somewhere but I couldnt find it again.

no prob man