# what size are stock headers? 91 teg **URL:** \ **Category:** Stock Engine-Bay Components\ **Created:** [March 7, 2013, 5:09am UTC](https://forum.g2ic.com/t/what-size-are-stock-headers-91-teg/98158 "2013-03-07T05:09:26Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![ismaels91](https://forum.g2ic.com/letter_avatar_proxy/v4/letter/i/e68b1a/32.png) [@ismaels91](https://forum.g2ic.com/u/ismaels91)\ **Post date:** [March 7, 2013, 5:09am UTC](https://forum.g2ic.com/t/what-size-are-stock-headers-91-teg/98158/1 "2013-03-07T05:09:26Z")
help ---
**Author:** ![djzachtyler](https://forum.g2ic.com/letter_avatar_proxy/v4/letter/d/a183cd/32.png) [@djzachtyler](https://forum.g2ic.com/u/djzachtyler)\ **Post date:** [March 7, 2013, 6:50pm UTC](https://forum.g2ic.com/t/what-size-are-stock-headers-91-teg/98158/2 "2013-03-07T18:50:05Z")
stock header output is a 2.25" at the collector. if you are looking to replace it ( seeing you are in cali) you need to get a CARB approved header which limits you to the DC Sports header for street, Or the Pacesetter header. you cannot go larger that 2 1/4 " on any street legal exhaust mani application in Cali… If you are going to track this car and reg it as an OHV then you can do pretty much whatever you want. ---
**Author:** ![Colin](https://forum.g2ic.com/user_avatar/forum.g2ic.com/colin/32/16_2.png) [@Colin](https://forum.g2ic.com/u/Colin)\ **Post date:** [March 7, 2013, 7:31pm UTC](https://forum.g2ic.com/t/what-size-are-stock-headers-91-teg/98158/3 "2013-03-07T19:31:03Z")
It’s not that it’s illegal to be larger than 2.25", there just isn’t a 2.5" header that comes with a CARB EO# valid for DA’s. Which is stupid, because none of this stuff even effects how clean the engine runs. ---
**Author:** ![djzachtyler](https://forum.g2ic.com/letter_avatar_proxy/v4/letter/d/a183cd/32.png) [@djzachtyler](https://forum.g2ic.com/u/djzachtyler)\ **Post date:** [March 7, 2013, 9:31pm UTC](https://forum.g2ic.com/t/what-size-are-stock-headers-91-teg/98158/4 "2013-03-07T21:31:53Z")
I wholeheartedly agree with you there Colin… Logic would dictate as long as it connects top a catalytic converter and pumps “Clean” Exhaust it should be irrelavent, but good ol Cali gottta have their hand in the pot somehow. If you ask me they won’t be happy till we are all on the bus or driving Priuses… LOl ---
**Author:** ![da6xsi06](https://forum.g2ic.com/letter_avatar_proxy/v4/letter/d/ce73a5/32.png) [@da6xsi06](https://forum.g2ic.com/u/da6xsi06)\ **Post date:** [March 8, 2013, 3:01am UTC](https://forum.g2ic.com/t/what-size-are-stock-headers-91-teg/98158/5 "2013-03-08T03:01:10Z")
that or scooters. ---
**Author:** ![Colin](https://forum.g2ic.com/user_avatar/forum.g2ic.com/colin/32/16_2.png) [@Colin](https://forum.g2ic.com/u/Colin)\ **Post date:** [March 8, 2013, 3:42pm UTC](https://forum.g2ic.com/t/what-size-are-stock-headers-91-teg/98158/6 "2013-03-08T15:42:53Z")
Scooters likely pollute more, although they get better gas mileage. Seems we could help mother nature out a lot if we switched to electric gardening tools opposed to gas. Scooters and the like are likely similar are I don’t think most of them have any sort of catalytic converter. [http://www.edmunds.com/car-reviews/features/emissions-test-car-vs-truck-vs-leaf-blower.html](http://www.edmunds.com/car-reviews/features/emissions-test-car-vs-truck-vs-leaf-blower.html) ---
**Author:** ![djzachtyler](https://forum.g2ic.com/letter_avatar_proxy/v4/letter/d/a183cd/32.png) [@djzachtyler](https://forum.g2ic.com/u/djzachtyler)\ **Post date:** [March 9, 2013, 1:57am UTC](https://forum.g2ic.com/t/what-size-are-stock-headers-91-teg/98158/7 "2013-03-09T01:57:28Z")
:lol: ---
**Author:** ![ismaels91](https://forum.g2ic.com/letter_avatar_proxy/v4/letter/i/e68b1a/32.png) [@ismaels91](https://forum.g2ic.com/u/ismaels91)\ **Post date:** [March 9, 2013, 11:19pm UTC](https://forum.g2ic.com/t/what-size-are-stock-headers-91-teg/98158/8 "2013-03-09T23:19:51Z")
what about inlet size?