D2 headers
 

does any one make headers for the D2 i know you can get um for a D1 and saw some thing about doing some headman headers mod a wile back im about to do a cat back system now and would love to do the whole thing...also how much of a differance and power and gas would it be if i was to straight pipe and still use the stock pipes. took off the exhaust from the y pipe and love the sound.

You might try a search on this, I know a few people have talked about it before.
Yes you will gain some more power, not a lot without also reworking the heads so you can move the extra air needed for a bigger power and MPG change.

Edit- I'm staying away from this because the more I read your topic, the less I can really understand what you're asking and wanting to do.

thanks mike your allways a big help...@street wolf i was asking if there was any bolt on type headers for the D2

The only difference between the DI and DII headers are the O2 sensor ports. The DI takes a smaller thread then the DII. Im running a DII Ypipe on my DI with universal O2 sensors I dont see why you couldnt use DI setup

Here you go, direct bolt on. Just get the exhaust pipe under the truck mated up to the headers.

Hedman Hedders 39806 - Hedman Street Hedders - Overview - SummitRacing.com

thanks alot long haul thats the kind of answer i was looking for....

Is that for the D1? The reason I ask is bc it says it's for the 3.5L engine.

they are for a Range Rover Classic

Where can I get the D1 headers (link)? and do they mess with any sensors or anything that will throw a code?