got 4 -1 headers w/ a 3" collector and 2 1/2" stock exhaust on my LS going FI soon. Got any suggestions?? or i'm think go 3" exhaust first then get a straight 3" test pipe instead of going from 3" to 2 1/2" for the test pipe. Or again should i just get 3" exhaust then get the test pipe expecially when i'm goin FI??

 

Regardless of size, I'd recommend a high-flow catalytic convertor over a test pipe.

 

3" piping is too big for a naturally aspirated LS motor.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 98 Spec R &raquo;</TD></TR><TR><TD CLASS="quote">3" piping is too big for a naturally aspirated LS motor.</TD></TR></TABLE>

Reread the part where it says he's going FI.

 

i'm not going NA i'm boostin nah LS doesnt have as much potential then a NA LS unless LS/Vtec if done correctly...plus i'd go 4-2-1 if i was goin NA

 

and with a smaller collector

 

if your saying your going to boost then why buy a header at all? waste of money!

 

AND about the piping, you should just get 3" inch turbo back.

 

i say you leave your exhaust system the way it is until you actually boost...youre willing to sacrifice driveability until you turbo..i wouldnt

 

AND...if you get the piping b4 you boost, your gonna loss some gas milage. lol

 

Who said he's getting a turbo?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 01blackgsr &raquo;</TD></TR><TR><TD CLASS="quote">Who said he's getting a turbo?</TD></TR></TABLE>

his original post mentions it

 

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

his original post mentions it</TD></TR></TABLE>


his post:
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Slo_LS &raquo;</TD></TR><TR><TD CLASS="quote">got 4 -1 headers w/ a 3" collector and 2 1/2" stock exhaust on my LS going FI soon. Got any suggestions?? or i'm think go 3" exhaust first then get a straight 3" test pipe instead of going from 3" to 2 1/2" for the test pipe. Or again should i just get 3" exhaust then get the test pipe expecially when i'm goin FI?? </TD></TR></TABLE>

actually no it doesnt.
it says he's going FI. doesnt say anything about a turbo. turbo isnt the only FI

 

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


his post:


actually no it doesnt.
it says he's going FI. doesnt say anything about a turbo. turbo isnt the only FI</TD></TR></TABLE>

Exactly

Why the hell do you have such a huge headeR (you only have one) on your NA LS

Also, the stock exhaust piping is no way 2.5"

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">got 4 -1 header s </TD></TR></TABLE>

Why did you get 2 header's for a 4 banger? Or did you do a v6 swap?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Slo_LS &raquo;</TD></TR><TR><TD CLASS="quote">got 4 -1 headers w/ a 3" collector and 2 1/2" stock exhaust on my LS going FI soon. Got any suggestions?? or i'm think go 3" exhaust first then get a straight 3" test pipe instead of going from 3" to 2 1/2" for the test pipe. Or again should i just get 3" exhaust then get the test pipe expecially when i'm goin FI?? </TD></TR></TABLE>

stock exhaust on a ls is like 1.75 or 2"... not 2.5... if u put 3" exhaust u would probly lose power on a na ls.