There was definately tuning involved as I know the customer was having lean issues without a proper tune.

That's the biggest issue with these results. They show gains but there are so many variables changed at once that you really don't know which was responsible for what.

I will say that you will need a tune to run headers and possibly larger injectors depending on the pulley size you have.

So assume if buying headers a tune is necessary, especially on the N/A. The SC can get away with it at lower boost.

Is 45 RWHP feasible with a tune and headers? Absolutely, if the boost is there. On a bone stock car I would expect to see more of 20-25 RWHP. Everything works in harmony, 1+1= how well we tune it.

Seeing the results still leads me to believe they are a worthwhile HP investment, although not the first thing I would do.

As far as HP/$ this rates lower then ECU tune, but much higher then cams. I guess we'll have to go get a set thrown on our N/A for some more numbers to throw around.