Im gettin ready to tune my car, b20v, rs machines, jun3s, victorx, dsm440s, etc.

Now Im in a hurry to get the car up and running well, but cant afford to pick up a hytech bigtube rep. just yet. So I figured i'd tune open headers on a DC 4-1 and when I get money to get the bigtube, i'd just slap it on.

Will I need to retune? Is it going to me THAT big of a difference? Will running/tuning open headers with the DC be like tuning with the hytech rep?!

And I know many of you are going to say just wait for the bigtube, but i want to know ^^^^^

 

Wait till you get the new headers. Going from DC to Hytech big tube headers will completely shift the power band and throw the tune off. FYI DC headers are not much better then stock.