Talvanos

I was looking at some headers, and they have 2 different types, ones for 2.2 with SAI and ones for 2.2 without SAI.

First, what is SAI?

Second, does the 2010 2.2 L61 have SAI?

Thanks for any help.

843de

SAI stands for Secondary Air Injection, it was a secondary emissions control system that injected fresh air into the exhaust manifold ahead of the catalytic converter(s)to aid in reducing emissions. As far as I know that system was only found on some 2006 Cobalts with the L61 engine, for your 2010 the non-SAI header is the one you're looking for.

prod

Also, dont the 2010 HHRs come with the LAP VVT flex fuel engine, not the L61?

Talvanos

Thanks 843.

Yes prod, sorry about the confusion.