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Wales
by Joske Vermeule, September 1
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Forums39
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Most Online1,063 Jun 14th, 2026
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Joined: Aug 2017
Posts: 504 Likes: 2
Talk Morgan Regular
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I have a Roadster S1 from 2004, and have just realised that the trumpet leading air from the inverted louvres to the air box is lacking. The box itself and the filter is of course there, but not the trumpet. So the air is just sucked into the rectangular opening of the box, but not rammed in, as the trumpet might have done. Is this of any importance to an everyday driver? Lack of performance? Should I search for a trumpet (I know what company made them) or could I put on some other filter with any change in preformance, for example an ITG? Greetings from Norway! Robbie M.
Robbie the Norseman 2004 V6 Roadster Sherwood green
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Joined: Mar 2009
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Talk Morgan Addict
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Talk Morgan Addict
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My 2005 roadster had no trumpet. I did replace the filter with a K and N but anyway, someone at factory (I think) told me it made no difference.....some came with one, some without! Sort of, "they don't all do that, sir" to make a change Nick
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Joined: Jul 2007
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Member of the Inner Circle
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The trumpet goes to the inverted louvres in the bonnet. So it brings in cold air and that does make s difference. How much I don't know.
JohnV6 2022 CX Plus Four 2025 Renault Scenic Alpine etech "Yvette"
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Joined: May 2009
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Green & Grown Up Talk Morgan Addict
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Green & Grown Up Talk Morgan Addict
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All of the Roadster 100's were delivered with the Long Flexible hose running forward from the Air Filter Box and the open end just poked over the top of the cross frame with the open end located just behind the top of the Radiator.
I have been trying to find, without success, the type of Polished Trumpet End seen on a Photo which I will try and post in the Photo Gallery as I have forgotten how to get a URL via TM?? ( DoH)
The one in the photo also includes a Neat Mesh Screen set just inside the Trumpet.
Another R100 Register Member's Car has had the whole Box removed and replaced with the K&N inverted 'Flowerpot Shaped' Filters on the Air Intake and the Breather Pipes. Seems to be ok and adds to the engine sound I am told. 
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Joined: Apr 2017
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Talk Morgan Enthusiast
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Talk Morgan Enthusiast
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All of the Roadster 100's were delivered with the Long Flexible hose running forward from the Air Filter Box and the open end just poked over the top of the cross frame with the open end located just behind the top of the Radiator.
I have been trying to find, without success, the type of Polished Trumpet End seen on a Photo which I will try and post in the Photo Gallery as I have forgotten how to get a URL via TM?? ( DoH)
The one in the photo also includes a Neat Mesh Screen set just inside the Trumpet.
Another R100 Register Member's Car has had the whole Box removed and replaced with the K&N inverted 'Flowerpot Shaped' Filters on the Air Intake and the Breather Pipes. Seems to be ok and adds to the engine sound I am told. That's a great looking 4/4 Zetec engine bay. Whose car is it, I'd like to blag a few ideas. Revotec do some nice polished intake hose trumpets
Bob
2009 Black Roadster 1999 4/4 2 litre Zetec
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Joined: Aug 2017
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Well, of course it matters, question is how much? Cold air rammed into the intake is surley better than just warm air from the engine bay, but would I notice? This car has 228 hp nominally, if it turns out to be just 218 it is still enough to lose my license any day. On the other hand, it is sad to restrict the power if it is really noticeable and relativly easy to fix. Any thoughts? Any wizardry from DaveW? Robbie M.
Robbie the Norseman 2004 V6 Roadster Sherwood green
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Joined: May 2009
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Green & Grown Up Talk Morgan Addict
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Green & Grown Up Talk Morgan Addict
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Thanks for the info Bob,
Sadly I have no idea who's car this is. I believe that the photos were posted on here some years ago.
Frank
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Frank, there are rebooted pictures at the end of this thread: http://www.talkmorgan.com/ubbthreads.php/topics/41344/Re_Series_1_Roadster_Air_Filte#Post41344Could these be the ones you are referring to? If so, the duct is not bespoke, but obviously what was delivered with (some of) the Roadster, and the item I am looking for. But the question remains: Is it worthwile? Will it make a difference? A difference noticeable to the driver or to the endurance of the engine, that is. Robbie
Robbie the Norseman 2004 V6 Roadster Sherwood green
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