is it possible to use headers to stock downpipe?

[CB7xTURBO]

i was wondering since i got a 10th anniversary and the headers look really restricted and weak i was wondering if it was possible to put a DC or a Megan on the first part where it has 4 pipes then connect it to the stock downpipe?

let me know guys thanks

[deevergote]

You only have one header.

And no, I don't believe it would bolt up. Even if it would... you wouldn't gain much. The downpipe/collector is just as much of a restriction as the primaries.

[Masamune]

And no, I don't believe it would bolt up. Even if it would... you wouldn't gain much. The downpipe/collector is just as much of a restriction as the primaries.

x2, my exact thoughts.

Good response Deev

[CB7xTURBO]

ok thanks.. i remember seeing a couple people using the headpipe from DC or megan with stock downpipe but idk.. thanks guys

[jmolina]

You only have one header.

And no, I don't believe it would bolt up. Even if it would... you wouldn't gain much. The downpipe/collector is just as much of a restriction as the primaries.

yes it will bolt up, i've done it, but if you're lowered you will scrap the downpipe like crazy. ive noticed that atermarket headers are longer and stock, so your downpipe will be closer to the ground.

[CB7xTURBO]

thanks for the input bro.. any differences? BTW it was you that posted and i read it thats why i made this thread but i was still unsure..

[Tippey764]

In your case no

You have an f22a1 which has a 4-1 exhaust manifold to downpipe setup. Maybe if you had an a4/a6 but definetly not with an a1

[CB7xTURBO]

ahhhh ic ok thanks guys

[Night Wolf]

get an f22a4 header. its tubular 4-2-1

[CB7xTURBO]

or i can get megan or dc lol wait.. if i got the a4 header would i need to relocated my o2 sensor? or is that for the a6?