# 'Evolution' of my X - Mods & Dyno Graphs Inside

**URL:** <https://forums.speedlife.net/t/evolution-of-my-x-mods-dyno-graphs-inside/245983>\
**Category:** Builds\
**Created:** [August 8, 2009, 7:34am UTC](https://forums.speedlife.net/t/evolution-of-my-x-mods-dyno-graphs-inside/245983 "2009-08-08T07:34:38Z")\
**Posts on this page:** 1\
**Showing post:** 66

<div class="post-metadata">

**Author:** ![Celtic1982citleC](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/celtic1982citlec/32/6323_2.png) [@Celtic1982citleC](https://forums.speedlife.net/u/Celtic1982citleC)\
**Post date:** [August 27, 2009, 10:55am UTC](https://forums.speedlife.net/t/evolution-of-my-x-mods-dyno-graphs-inside/245983/66 "2009-08-27T10:55:40Z")

</div>

Stock o2 housing is perfect for a stock turbo. When you goto a bigger turbo the donut gasket to the downpipe because a huge restriction and causes backflow back into the turbo. Bad.

> [@Gmail wont open up in Firefox?](https://forums.speedlife.net/t/gmail-wont-open-up-in-firefox/22190/3):
>
> he said the stock o2 housing was the daddy of all o2 housings, after talking to his tuning shop they said the stock housing causes issues due to it tapering down to a 2" collector, they said he needed a full 3" exhaust so he could make another 35~ hp…
> 
> so now doing a full turbo back to get a full 3" exhaust to make more “easy” hp
> 
> god my work day goes from “no modding” to “450 whp build”

---

_[View the full topic](https://forums.speedlife.net/t/evolution-of-my-x-mods-dyno-graphs-inside/245983)._