Any of you know how these compare performance wise? I was just wondering because the price between getting a ITR head is similiar to just sending my GSR head to Alaniz. It's just a thought. And with either one, you get a p&p and valve job..I'm pretty sure that Alaniz's streetmast p&p is pretty good but how much better especially on a GSR head is it compared to a stock ITR head? What do you guys think?

 

I'd say get your GSR head ported... The intake and exhaust ports are straighter in a GSR head and you get added Compression with the gsr head over the ITR head...Win Win

 

SINCE I DRIVE A GSR I WOULD SAY GO WITH THE GSR

 

here we go again lol

 

lol..yeah i just read the other post... but to reply to this post.. im wondering the same thing?