can ne1 tell me roughly how much an ebay header 421 would increase hp on a stock d16z6 with an intake

 

2 maybe 3 hp, a larger diameter exhaust piping would help to

 

eBay no-name headers suck something major...

 

3-4 maybe....not really that much.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Nate047 &raquo;</TD></TR><TR><TD CLASS="quote">eBay no-name headers suck something major... </TD></TR></TABLE>

agreed, ya if ur goin with the 4-2-1 then get the greddy or dc sports if ur on a budget, but i've heard that dc sports ceramic crack at the welds, so get stainless

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Civicse &raquo;</TD></TR><TR><TD CLASS="quote">

agreed, ya if ur goin with the 4-2-1 then get the greddy or dc sports if ur on a budget, but i've heard that dc sports ceramic crack at the welds, so get stainless</TD></TR></TABLE>

Yup, mine did...

 

i ended up buying a cheapie i dont even have the car yet its supost to be brought to at about 8 tonight

 

if u got the steel headers i would heat wrap them