Heat shield part number needed

[Keefred]

This has become a bit of an Ocd mission for me, getting this part, even though I know it isn't really needed.

 

I bought 17502-46080 front heat shield which has the nuts fixed to it, and bought the bolts thinking that when the bloke replaced my broken gear box to exhaust bracket it would make the whole job easier as the captive nuts on the sheld would save messing about trying to get the old ones off and he could just cut the old bolts off, put on the new bracket and use the new shield with the captive nuts and the new bolts and gasket 90917-06056 I bought.

 

He told me he couldn't do it as it was the 'wrong size' ? I then assumed the 17502-46080 I had bought must be for a TT which had a bigger bore exhaust. I also assumed that the picture attached which I sent to Steve Manley saying I wanted this part with the ring drawn round it but for an NA was misunderstood and he had sent me one for a TT. It is the assembley 17502b.

 

Having spent literally hours looking to find what the part number of this thing was for an NA I have become more convinced that there is only 1 type which is the 17502-46080 which fits both the TT and the NA and my 'mechanic' said it didn't fit as he didn't fancy doing the job, no idea why as if I had a ramp and the tools I would not hesitate to do the thing myself, with the new shield and the bolts it would be an easy job.

 

On both these pictures it seems to me that the 'downpipe' with the first cat in is obviously different between the TT and the NA, the second section / cat = 17410 is common to both cars, then the rest of the system is different again, so, if that is correct the downpipe / first cat diameter must be the same, making those gaskets shown as 17451 = 90917-06056 common to both TT and NA on that section of the exhaust and part 17502b also the same for both cars ?

 

The one thing that confuses me is that on the picture with the circle on just to the right of that it seems to offer some different options for the NA, the part marked #4.

 

If anyone can confirm what the part number is I would be very grateful as this is the only bit I need before I embark on getting all the bits done to the car that need doing.