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Joined: Nov 2016
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Evening all, Ok have my pipes off doing a deep clean, have read a few threads on exhaust mods, whilst its off should I remove cat, drill a baffle, or nothing, trying to get the best breathing for the engine maybe a bit more noise but overall to avoid the pinking etc,she is runniing a garage 56 filter, was keen on any views here before I put her back together 
Last edited by Speed; 13/01/17 07:17 PM.
Superdry
76 Fizzy
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Drill the baffles! Your M3W will be thankful.
The additional noise is something you get used to fery fast!
Hannes
once: Green M3W; 2013
now: Red 4/4 Sport; 2011
and some practical cars for use in real life
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Talk Morgan Enthusiast
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+1
It's the front one that makes the most difference.
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Thanks for the replys gentlemen, I know its a subject that lots think about and make different decesions on, but I'm a driller or will be tom!
Superdry
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Talk Morgan Expert
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Talk Morgan Expert
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I think im drilling just my front baffle in the spring. Leaving everything else be....
kirkusblog.com
2016 M3W John A Prestwich Special
1952 Ford 8N
1968 Honda CL175,and 2018 Ural Retro
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Some more pictures of what people are using would be great. I've seen a couple threads describing it, but some photos would be awesome. I'd like to know what to take with me when I pick mine up in Illinois, cause I think I'd like to have that baffle removed for the drive back to Texas.
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Talk Morgan Enthusiast
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Remind me please what size hole saw have folks used to drill the baffles. How far in is the front baffle? Mols excellent post does not specify dimensions.
Tim
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I run my M3W with the factory stage 1 kit so no drilling fotos available.
When it comes to pure physics: drilling only one buffle plate does not make a lot of sense. Much better to drill both to fee the airflow. The larger the diameter the better the flow. I would not remove the cat as a first step but keep it as a last option for completely free pipes.
If you are afraid of noise: you can always put a steel wool sponge or metal strech sheet into the rear end of your pipes for sound damping.
Hannes
once: Green M3W; 2013
now: Red 4/4 Sport; 2011
and some practical cars for use in real life
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Tools required:
Vice
38mm hole cutter
18" long 3/8" extension bar with socket to fit the hole cutter
Cordless drill with adaptor to fit the extension bar
Tapping paste or lubricant
Patience, it's stainless and tough. Take your time.
I wore out 2 cutters doing mine.
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Tools required:
Vice
38mm hole cutter
18" long 3/8" extension bar with socket to fit the hole cutter
Cordless drill with adaptor to fit the extension bar
Tapping paste or lubricant
Patience, it's stainless and tough. Take your time.
Thank you very useful info
I wore out 2 cutters doing mine.
Superdry
76 Fizzy
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