^^ That's debatable. Hahn has 10cm housings that help spool up their Super16G and S20G faster, not to mention the EVO IX with the 10.5cm exhaust housing. All bigger and used to help spool the turbo faster.

 

the 10.5 hotside was changed in 05 and kept on with the 06. the 03-04s were 9.8

 

Ah, yes and 9.8cm is still bigger than 7cm

 

yup. and my 16G is a pretty big turbo for a stocker. it hits full boost at 3200RPMs and im sure the twin scroll helps that out

 

I personally like the 20g

 

make great power but known to break easy from every thing I have heard (not that i research the 20G ever)

 

I haven't heard anyone breaking a 20G, but you never know. I would have to say that it's from lack of support, but it's just a guess. I've known folks to recommend a 50 trim over a 20G though. It's kind of like the comparison of a 16G and T28. Both have their pros and cons. If I were to get an upgraded turbo from the T25 (assuming that I didn't already have a T28), I'd skip over either one and go Super 20G or 50 trim. That reasoning is probably because I would like to see a bigger snail under my hood, lol.

Oh, but don't forget that a bigger turbo also means possibility of the internals or you'll HAVE to keep the boost "low" since I wouldn't go over 400chp on our motors just to stay safe.

 

Ya.. I keep my boost at 15lbs.. But I dont have any complaints on the power its pushing to the wheels..