Milwaukee Eight (M8) 2017 and up M8 Air and Liquid Cooled discussion
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M8 cat delete

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Old 02-15-2021, 08:08 PM
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Default M8 cat delete

Any good write ups on cat delete. Would I need to get it re tuned? Has regular bolt ons now. Just looking to run cooler and more depth in sound
 
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Old 02-15-2021, 08:19 PM
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Old 02-15-2021, 08:37 PM
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Old 02-15-2021, 10:11 PM
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Just did mine a couple months ago. Im running the harley stage 2 torque came for now, and after decatting the headers, it runs a bit rough. When it warms up again, I'll run a few smart tunes to clean it up.

Decatting just takes some time and elbow grease. Long drill bits.....drill as many holes as you can Then you can try to get in there with some paddle bits, but I just kept using the regular bits. Then a long crow bar and hammer to beat out the rest.
 
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Old 02-15-2021, 10:15 PM
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Originally Posted by teedoff65
Just did mine a couple months ago. Im running the harley stage 2 torque came for now, and after decatting the headers, it runs a bit rough. When it warms up again, I'll run a few smart tunes to clean it up.

Decatting just takes some time and elbow grease. Long drill bits.....drill as many holes as you can Then you can try to get in there with some paddle bits, but I just kept using the regular bits. Then a long crow bar and hammer to beat out the rest.
does it change the sound much? After reading most say not really
 
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Old 02-15-2021, 10:26 PM
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Originally Posted by Thatdude596
does it change the sound much? After reading most say not really
Yes a little. Depends on your set up maybe as well, Like you, I wanted the heat gone a bit.

I]'ll be doing an aftermarket cam again before long. Thats the best thing to do for better sound.
 
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