so i have a 4 speed trans sitting around at my house and someone told me that i could turn it into a SI trans by adding a 5th gear to it? does anyone have any information about this or if its possible?

 

No. Just buy an SI trans

 

x2 si trans come cheap and are plentiful

 

i got a si tranny FS dirt cheap.. pm me if interested

 

x3 totally pointless the most you will pay for a good si trans is 100 bucks and if you have never taken apart a tranny you dont want to mess with that, and the gear ratios are completely different i think so even if you put a 5th gear in, it wouldnt be the same as a si trans

 

needs shifter fork, 5th gear, and reverse lockout......

 

i would just get a si tranny or at least a dx 5 speed one it's alot easyer. i did a 5swap on a base model, went good.