Did some searching, just looking for an ECU upgrade for my 88 NA.
The Rtek 7 ECU is only made for an 89-91 I believe it says on the website. Just wondering what's out there and what would be the best bang for my buck so to speak. thanks.

 

RTek works on S4s I think, or is that only TIIs?

thats the only upgrade available, otherwise youll need a AFC or a standalone ems.

 

megasquirt it! its a diy ecu, powerful and for a fraction of the cost of a typical standalone. but u have to build it yourself...

 

only the 2.0 Rtek would be useful for any purpose on an n/a and at $400 there is better options out there like ^ said.