# difference in KA intakes

**URL:** <https://forums.speedlife.net/t/difference-in-ka-intakes/108465>\
**Category:** SON240sx Automotive\
**Created:** [August 11, 2007, 6:15pm UTC](https://forums.speedlife.net/t/difference-in-ka-intakes/108465 "2007-08-11T18:15:15Z")\
**Posts on this page:** 1\
**Showing post:** 3

<div class="post-metadata">

**Author:** ![Zeta\_G](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/zeta_g/32/5558_2.png) [@Zeta\_G](https://forums.speedlife.net/u/Zeta_G)\
**Post date:** [August 11, 2007, 8:01pm UTC](https://forums.speedlife.net/t/difference-in-ka-intakes/108465/3 "2007-08-11T20:01:38Z")

</div>

> [@FS:2002 GSXR600](https://forums.speedlife.net/t/fs-2002-gsxr600/13647/2):
>
> Those are the secondary butterfly’s. The 91-94 OBD1 Ka’s uses these swirl control valves, at idle and low rpms the valves close up incresing the velosity of air going into the cylinder, also creating a swirl effect inside the cumbustion chamber.
> 
> The one without them has either had them removed (slightly better air flow) or is a 1995+ Ka, 95 and up didnt come with secondary butterfly’s.

o neat…  
thx for the info  
and i guess they are interchangeable then rite?

---

_[View the full topic](https://forums.speedlife.net/t/difference-in-ka-intakes/108465)._