I have a 03 Subaru Impreza 2.5RS. I want to do something for the ECU. ive checked out cobb tunning and they have some package deals for my car. Is this a good idea.
is there alot of horsepower to be gained from this?

What do they change exactly?
will i need bigger injectors?
if a had my cams shaved 1000profile afterward, would i have to reflash again?
i haven't seen much ecu n/a tuning threads

will i get a get a backup of my original ECU. Is there a place where I can get that done?

i will be doing a major service to my car in the near future belts water pump Valve Cover and Spark Plug Gasket, new spark plugs, valve adjustment?
should i change/replace anything while so much is off my engine?

Thank you! kill me softly

 

keep it how it is..its too much to build a N/A. Any money you put into it, it will still be slower than a turboed car.. plus you'll save gas and at least you have the ability to out live a turboed car haha..

 

Ya it gets pricy when the engine starts coming out everyother weeklol. Just wondering if a place like WORKS offers a quick tune for n/a. 168 h/p leaves civics molesting me on the road. After weighing a swap out with n/a tuning, the swap still will cost uppwards of 4to5 grand for a (non wrench monkey like myself). The shear magnitude of replacing engine, tranny, exhaust, is too much for my first tuned car.
And turboing a 2.5 looks like that will result in 2 months of fun shortly fallowed by tranny failure.

Come on someone has cranked these single cam airplane engines to higher HP. Without strapping sudden death to my stock block.

 

http://store.crawfordperformance.com...categories/249
Click on the different levels (SRS10, SRS19, SRS20, SRS30 etc) for what you need and a guesstimate on how much *power* you'll get from it.

Also, try a search on RS25.com

 

Thanks for the advice ill look into Crawford and yes active on rs25. I'm not expecting any more then a quick 15 to the ground powerwise

 

So Crawford makes the rs reflshes and the only category. Without getting new heads and running a catless exhaust is the srs-10. What is the difference between the srs-10 and the srs-10 + core. I guess my question is what's the core? 5-10 HP is the gain as well