Wales
by Joske Vermeule, September 1
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Jun 14th, 2026
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Joined: Aug 2019
Posts: 960 Likes: 21
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OP
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Joined: Aug 2019
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I really appreciate your comments. It looks like my order is right. As far as I can read, I would do first the Centa upgrade for sure. Then the G56 exhausts. And maybe, if I win the lottery, the Olhins.
The 569 cams doesn't sound like a nice idea if I won't change the ECU. And I won't, as in Spain the MOT checks the emissions, and I don't want to have a bad surprise... with emissions way above the Euro4 specification.
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Joined: Jun 2012
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Talk Morgan Expert
Joined: Jun 2012
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The G56 Stage 1 kit is a nuts and bolts job that you can do yourself fairly easily. I think that G56 do a Euro 4 optimised system now, maybe? As the exhaust and filter are easier and quicker to do than the Centa mods, I would put that first and get the benefits now.
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Joined: May 2015
Posts: 1,815 Likes: 32
Talk Morgan Enthusiast
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Talk Morgan Enthusiast
Joined: May 2015
Posts: 1,815 Likes: 32 |
The G56 Stage 1 kit is a nuts and bolts job that you can do yourself fairly easily. I think that G56 do a Euro 4 optimised system now, maybe? As the exhaust and filter are easier and quicker to do than the Centa mods, I would put that first and get the benefits now.
And the G56 extra power may quicken the justification/need for the Centa mod too 
M3W5sp 2015, MSCC, MTWC, Oxon UK
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Joined: Feb 2019
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Talk Morgan Addict
Joined: Feb 2019
Posts: 3,857 Likes: 2 |
The G56 Stage 1 kit is a nuts and bolts job that you can do yourself fairly easily. I think that G56 do a Euro 4 optimised system now, maybe? As the exhaust and filter are easier and quicker to do than the Centa mods, I would put that first and get the benefits now.
And the G56 extra power may quicken the justification/need for the Centa mod too If you are using the power gain for speed and racing, but if you are trying to attain a smooth running engine then maybe not.
2019 M3W Sold and is now in Las Vegas enjoying the showgirls :-)
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Joined: Feb 2016
Posts: 775 Likes: 33
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Talk Morgan Regular
Joined: Feb 2016
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I did the Morgan Aero Racing Stage 1 route with S&S Stealth high flow filter and shorter less restricted Morgan Aero exhausts. M3W ran fine but didn’t like the sound of the exhaust. Eventually drilled out the front baffles of the stock exhaust and reinstalled. Works as well and exhaust note much better. Left cats untouched. I do have the upgraded 569 cams and ECU remapped for those cams but feel you really don’t have to do that.
I highly recommend you simply drill out the front baffles of the stock exhaust and not install the G56 or Morgan Aero Racing exhausts and install a S&S high flow air filter with standard ECU. This works just as well as the Morgan Aero Racing and G56 Stage 1, exhaust note is great, and much easier and less expensive. You will be very happy!
There is an earlier thread that explains how to drill out the front baffles. I did it myself.
Best of luck.
2015 M3W, Morgan Aero Racing Stage 1, Garage 56 Stage 2, sport black, saddle tan, jeweled SS dash.
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Joined: Feb 2019
Posts: 3,857 Likes: 2
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Talk Morgan Addict
Joined: Feb 2019
Posts: 3,857 Likes: 2 |
I did the Morgan Aero Racing Stage 1 route with S&S Stealth high flow filter and shorter less restricted Morgan Aero exhausts. M3W ran fine but didn’t like the sound of the exhaust. Eventually drilled out the front baffles of the stock exhaust and reinstalled. Works as well and exhaust note much better. Left cats untouched. I do have the upgraded 569 cams and ECU remapped for those cams but feel you really don’t have to do that.
I highly recommend you simply drill out the front baffles of the stock exhaust and not install the G56 or Morgan Aero Racing exhausts and install a S&S high flow air filter with standard ECU. This works just as well as the Morgan Aero Racing and G56 Stage 1, exhaust note is great, and much easier and less expensive. You will be very happy!
There is an earlier thread that explains how to drill out the front baffles. I did it myself.
Best of luck. I too might take off the AR Mufflers in favor of the drilled stock mufflers because the AR mufflers are pretty loud. I have already drilled the front baffles but just not installed them yet. I figure it is a good winter project to swap those pipes.
2019 M3W Sold and is now in Las Vegas enjoying the showgirls :-)
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Joined: Mar 2015
Posts: 215 Likes: 6
L - Learner Plates On
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L - Learner Plates On
Joined: Mar 2015
Posts: 215 Likes: 6 |
Just did the bafflectomy. A little louder but much better feel to the engine getting up to speed. Glad I did it.
I had considered Magnaflows since I use them on my truck. If someone would make a bolt on kit here in the US I probably would have gone that route.
Last edited by AZJowett; 12/12/20 05:54 PM.
2018 S&S 110th Beetleback
1934 MX4 Beetleback (in restoration)
1965 Corvette Coupe 327/350
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Joined: Feb 2019
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Talk Morgan Addict
Joined: Feb 2019
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Just did the bafflectomy. A little louder but much better feel to the engine getting up to speed. Glad I did it.
I had considered Magnaflows since I use them on my truck. If someone would make a bolt on kit here in the US I probably would have gone that route.
I am with you on this one. I can weld on farm equipment but nothing thin and nice looking. A bolt on Magnaflow kit would be great!
2019 M3W Sold and is now in Las Vegas enjoying the showgirls :-)
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