1.3BTT in a 2nd gen?
 

hey guys i need to know it i can swap a 1.3BTT and 5 speed into my 88 N/A RX7?

yes
takes lots of time and money and busted knuckles

If youre thinking of putting a 13b-rew into a FC dont throw in the stock twins go single you'll thank me later..

Or he could drop in a 13b-re which take alot less work, but he'll have to go single anyways. LOL

You can keep the the twins with the 13bRE but they will be non-sequantiel unless you have the stock ecu you had with the RE.