Is this an original 182 exhaust manifold?

[banhama]

As per title, I've seen pictures of this 4 to 2 to 1, and a different 4 to 1 manifold both advertised as '182 manifolds'
Can someone clarify please

It's stainless and obviously tubular rather than cast, so 3 more questions!

Is it worth replacing with anything less that a complete different design, such as PMS. Things like Gravity look pretty much the same thing.

Is it worth heat wrapping? To help underbonnet temps I guess yes, but any flow, power, response benefits?

If the answer to heat wrapping is yes, what wrap would you recommend.

Many thanks

 

[DaveDreads]

4-2-1 : 182

4-1 : 172

Your other questions I can't answer as i've only ever had a standard 172 manifold.

 

[avstar1]

The single pic you have posted above is a standard 4-2-1 exhaust mani from a 182, this will give you better mid-range in comparison to a 4-1 exhaust. 4-1 exhaust mani will give you slightly better top end, although I'm sure that can be debated.

 

[Martin_172]

As above generally a 4-1 for top end power and 4-2-1 for mid range. I swapped my 172 to a 182 manifold and also fitted a decat link pipe so not totally like for like comparison, but I gained mid range torque which felt much nicer on the road but also gained peak power and peak torque and it shifted them a few hundred rpm lower into the rev range