2-1 M8 exhaust with the Harley tuner - Road Glide Forums
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post #1 of 23 (permalink) Old 03-12-2019, 10:04 AM Thread Starter
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2-1 M8 exhaust with the Harley tuner

Does anyone know of or have experience putting a 2-1 exhaust on an M8 using the Harley tuner? Would it be capable?
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post #2 of 23 (permalink) Old 03-12-2019, 10:07 AM
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I have a V&H Pro Pipe on mine.... dealer used a Harley tuner and tune and it runs perfect.

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Does anyone know of or have experience putting a 2-1 exhaust on an M8 using the Harley tuner? Would it be capable?


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post #3 of 23 (permalink) Old 03-12-2019, 10:16 AM
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bassani r/r, s/e tuner, stage 1 air kit.... couldn't be happier
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post #4 of 23 (permalink) Old 03-12-2019, 10:42 AM
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post #5 of 23 (permalink) Old 11-27-2019, 07:57 AM
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Cobra 2 into 1 fp3 pro turned to 13 to 1. Very pleased with power and sound
post #6 of 23 (permalink) Old 11-27-2019, 08:29 AM
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Just a question here.

If you are going 2-1 we know the loss of the CAT (has the potential) voids the warranty. (Some dealers) If you're out of town and not at your home dealer they can flag your bike. (we've seen it happen) So why not at that point go with a FP3 or the Powervision?


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post #7 of 23 (permalink) Old 11-27-2019, 03:31 PM
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For me that was a tough choice, most of my riding CLOSE to home, yearly big ass trip(2020 is to Cali.), I just stuck with the HD thing to pray it would help me if I had a warranty problem, on my dealers word........ I hope I don't find out. Bike runs great.
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post #8 of 23 (permalink) Old 11-27-2019, 04:14 PM
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Does anyone know of or have experience putting a 2-1 exhaust on an M8 using the Harley tuner? Would it be capable?
I’ve done it many times. Go in to each cylinder’s VE table, one at a time, select the entire table and increase the values by 3 points. Then click on “save as” on the right side of the screen and give it a name like “104 2-into-1 VE plus 3” so that you know which map it is. Then flash your bike.
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post #9 of 23 (permalink) Old 11-27-2019, 06:13 PM
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One thing to keep in mind is that with 19-up models, even though FP3s or Power Visions don't imprint on the ECM, the bike will know that something 3rd party has been plugged in and the next time your bike is connected to a dealer computer, it will flag your VIN.

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post #10 of 23 (permalink) Old 11-27-2019, 07:27 PM
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Quote:
Originally Posted by RFG7680 View Post
Just a question here.

If you are going 2-1 we know the loss of the CAT (has the potential) voids the warranty. (Some dealers) If you're out of town and not at your home dealer they can flag your bike. (we've seen it happen) So why not at that point go with a FP3 or the Powervision?
they're 50-state legal and changing just the pipe would not require a tuner.

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