I searched but did not get anything with relavance to my question.

Basically I have a DC sports header and downpipe from my h22 swap, the flex pipe on the DC down pipe has a leak and it sounds crappy.
I was wonder if I could use a OEM downpipe with the DC header? I'm not concerned with performance, or anything of that sort, just want to know if it'll bolt up. Any help would be rgeatly appreciated, thanks.

 

i am pretty sure the way it bolts on is the same just the pipes are bigger but im not positive

 

I thought so too, but just wanted to confirm before I pick up a stock downpipe.
I just wanted to make sure DC sports had the same length runners to the collector as the stock manifold does.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bb_one &raquo;</TD></TR><TR><TD CLASS="quote">I thought so too, but just wanted to confirm before I pick up a stock downpipe.
I just wanted to make sure DC sports had the same length runners to the collector as the stock manifold does.</TD></TR></TABLE>

If you don't yet have a stock dowpipe, then just fix the DC downpipe.

Find someone who can weld, pick up some 2.25" (or 2.5" if you have decent engine modifications), a piece of flex-pipe of similar diameter and similar in length to the broken one, and a new flange if necessary. Have the welder remove the bad portion of the downpipe all the way up to where the two pipes Y at. Have him make a copy of that portion of the downpipe using the new piping and flexpipe, and then weld that onto the downpipe at the collector.

You have a header that has no leaks now without having to track down a stock downpipe, and it will most likely flow better than replacing it with a stock downpipe as well.

 

I don't think you can use it.

 

Cut the DC downpipe at the collector, get some stepped piping and go from whatever OD the DC header is to 2.5 and a new little flexpipe. bam, collector mod

 

it doesnt work. i had the same problem and tried to do that also. i dont think the bolts lined up.

 

HT is awesome, Thank you, I guess I'll consider the collector mod while I'm at it.