I have the following
AEM V2 intake
T1R 60R Exhaust


I have stock ECU
Will I notice gain from a spoon header if I don't plan to tune my ECU (I can't reflash anyway it's AP1)

 

Will you notice the gain? Probably not...but there are gains to be had even without a tune, but I don't think its a real gain that will be noticed significantly. But some butt dynos are more sensitive than others

 

try adding a spoon valve cover, might add more midrange

 

Well I didn't mean noticeable gain as actual meaning.. like they claim 10 WHP.

10HP usually are not noticeable but it is a great amount of HP from a header.. the question I am asking, can you get them using stock ECU .. or I need to tune...

 

When I was researching headers last year, I never found any solid reports of ANY gains from the Spoon header. It seemed to be mostly a show piece.