If i have a walbro 255 and ams fuel pressure regulator? should i get bigger injectors. casue people say the stockers are only go for about 300whp. and i have a megan headers, and drop in k&n intake

 

You need bigger injectors but headers are worthless on evo's.The stock headers are good for about 500hp.

 

do you recommend a brand? and the next size up is what?

 

You won't need new injectors with your mods. To be sure, log the car and check IDC at redline. Generally speaking, the stock injectors on a IX are good for ~350whp on a DJ. If you want to do something nice for your car, ditch the Magan manifold for the stocker. It doesn't sound like the car has been tuned, at least recently. If you bought the car used and haven't had it tuned, it should be the first thing you do.

 

^+1 Ditch the Megan manifold. Get yourself a stock manifold, boost controller, then get a tune.

 

Or get the stock manifold ported. Haven't done it myself, but have heard great things. If you're worried about looks, you can have it coated too.

Remember it's your car, so do what makes you happy.

 

Your stock ones are fine for your mods.

 

ok thanks guys.