whats the difference between the itr and gsr mani. I'm a/m.

 

the itr manifold is single plenum with shorter fatter runners for better high rpm flow. they are not interchangeable between heads.

 

thank you. lol I'm kinda new so i appreciate the solid answers. what up graded mani should i go for and if i do should i up my injectors and my rail.

 

 

no one can answer that for you. do your own research and come up with your own conclusions.

 

Actually, if you're not really building out the motor (either N/A or turbo) - you're doing it more for 'pretty' than performance aren't you? The dual runners give you an edge by being tuned for low-end (long runners) AND top-end (short runners).

If you just grab a Skunk (or ?) intake your narrowing down the range the manifold serves you well. Maybe OK if you want mostly hi-revs.. or turbo.

I think that's what the research comment is about.

You may need to read before you have a goal (based upon perf and $, for example).
You need a goal before you start buying parts...

Otherwise, you end up with a mish-mash that may work against itself and cost you both money AND performance.

The stock GSR is a rather nice setup out of the box... ; ' )

Mark