Will this header fit?
4-1 or 4-2-1?
The 4-1 will probably require you to notch the crossmember so that all of the runners clear it. I haven't heard about many people using the USDM GSR 4-1, it's usually either a JDM 4-1 or they just get a USDM 4-2-1 which should clear fine. I think some people have had problems getting the JDM 4-1 to clear the oil pan, but the USDM has shorter runners supposedly, so it should be fine.
The only other thing is that the lengths of the piping, cat, and header won't match up, so you will need to get some welding done.
The 4-1 will probably require you to notch the crossmember so that all of the runners clear it. I haven't heard about many people using the USDM GSR 4-1, it's usually either a JDM 4-1 or they just get a USDM 4-2-1 which should clear fine. I think some people have had problems getting the JDM 4-1 to clear the oil pan, but the USDM has shorter runners supposedly, so it should be fine.
The only other thing is that the lengths of the piping, cat, and header won't match up, so you will need to get some welding done.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by purplegsr (Exospeed) »</TD></TR><TR><TD CLASS="quote">4-1 or 4-2-1?
The 4-1 will probably require you to notch the crossmember so that all of the runners clear it. I haven't heard about many people using the USDM GSR 4-1, it's usually either a JDM 4-1 or they just get a USDM 4-2-1 which should clear fine. I think some people have had problems getting the JDM 4-1 to clear the oil pan, but the USDM has shorter runners supposedly, so it should be fine.
The only other thing is that the lengths of the piping, cat, and header won't match up, so you will need to get some welding done.</TD></TR></TABLE>
yea its a 4-1 one piece I figured I would have to notch the x-member to fit it. Thanks for the help
The 4-1 will probably require you to notch the crossmember so that all of the runners clear it. I haven't heard about many people using the USDM GSR 4-1, it's usually either a JDM 4-1 or they just get a USDM 4-2-1 which should clear fine. I think some people have had problems getting the JDM 4-1 to clear the oil pan, but the USDM has shorter runners supposedly, so it should be fine.
The only other thing is that the lengths of the piping, cat, and header won't match up, so you will need to get some welding done.</TD></TR></TABLE>
yea its a 4-1 one piece I figured I would have to notch the x-member to fit it. Thanks for the help
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 92Lx »</TD></TR><TR><TD CLASS="quote">clearance may be an issue. I'd use a header that was designed for the motor though if I were you.
- Nathan</TD></TR></TABLE>
Yea clearance will be an issue for sure but I'll manage I figure I'll probably dent in any header. The ones designed for it aren't 4-1 I can only find a 4-2-1 and I really need the top end in my LS. Plus for the price of this DC one I don't think I want to pass it up.
Thanks for your help
- Nathan</TD></TR></TABLE>
Yea clearance will be an issue for sure but I'll manage I figure I'll probably dent in any header. The ones designed for it aren't 4-1 I can only find a 4-2-1 and I really need the top end in my LS. Plus for the price of this DC one I don't think I want to pass it up.
Thanks for your help
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