i fried my ecu on my 87 and would it be cheaper to find one or get aftermarket?? whats the hp dif.?

 

It would be much cheaper to get one from the salvage yard. They sell for $50 or less. Check with your local rotorheads, and you may even get an ECU for free.

A standalone EMS would up the horsepower some on an otherwise stock engine, but it's main advantage is that, if tuned properly, it will run the engine better than the slow stock ECU. Also, it will eliminate the flooding problem and 3800rpm problem, and most EMS products come with extras like rev limiter, turbo timer, datalogging, AFR meter, etc. An EMS will also allow for fine tuning for modifications like street porting, superchargers, or just about anything you can add to the engine. The downside is that an EMS costs $1,000 to $8,000, not including installation and tuning which are an additional $500 to $3,000.