Is it worth getting these?? How much gains will i make. If anyone did the same to their gsr's let me know what you think.

 

You're not really going to notice any gains with just those parts. What are the plans for the car?

 

im planning to go all motor: skunk2 int man, stg2 cams, camgears, port/polish head.

 

I would go with the JDM ITR 4-1 or DC JDM 4-1. Pair that up with a high flow cat and a custom 2.5" muffler shop exhaust with something like a Magnaflow or Ultraflo muffler. Throw in a Magnaflow resonator and you're in business. I don't think a 2.25" exhaust with a chambered muffler is going to flow quite enough for your needs. Those are fairly aggressive cams you're going with.

 

With that severe of modifications upstream, it would be smart to get a better flowing header and exhaust system, such as a DC JDM 4-1 or JDM 4-1 and a 2.5" exhaust.

 

how big is the piping for the comptech exhaust. i was thinkin of putting these with the jdm 4-1 header which has 2.5 connector

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by FlipboiGSR &raquo;</TD></TR><TR><TD CLASS="quote">how big is the piping for the comptech exhaust. i was thinkin of putting these with the jdm 4-1 header which has 2.5 connector</TD></TR></TABLE>

2.25". That's probably going to be a bit too small as well for what you're doing.

 

Does anybody like the 97 jdm 4-2-1 header??