Mods so far are cosworth 272's, head studs, 780 injectors, LICP, walbro 255, drop in air filter, hallman MBC, TBE, and tune. Stock IX turbo. How much would I benifit (hp, tq, spool) from O2 housing with this setup. And what housing would you recomend. I'm trying to figure out if it is worth all the work.

 

it was a pita to install but I noticed better throttle and earlier spool. they say 10 whp. i have the megan o2. you can find them for around $100. try ttp-engineering.com. well worth the money.

 

10 whp is not bad. I only got 15whp with cams.

 

when i installed mine, instantly an improved spool comes earlier

 

I would definitly say that an o2 housing would be the best next bolt on for you... other than a meth kit of coarse

 

I'm surprised by these feedback. I read slight loss of midrange or spool for alil more top end