Author Topic: Follow up on the H pipe thread a while back.  (Read 619 times)

Offline Ncdan

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Follow up on the H pipe thread a while back.
« on: July 28, 2021, 05:33:10 PM »
A few weeks ago I started a tread on changing out the H pipe on my 2002 Stone.
There were mixed opinions, both positive and negative, so I figured I do a follow up, after making the change.
I replaced the OEM with the Mistral H, I ( hope I spelled it right this time) which appears to be the choice of most who have made this change.
I also open up the back hole of the muffler about 30%.
I am well please with the results as far as the sound and I really don’t believe It changed the Preformance in any way, that’s noticeable.
I did need to get Beetle to do a slight map adjustment due to some muffler popping but other than that all seems well.
I possibly may have dropped 50- 100 RPMs at idle but not even sure about that, as I have no tachometer.

If anyone is thinking about preforming this mod I just thought I’d throw out my take on it, as a follow up.
« Last Edit: July 29, 2021, 06:33:35 PM by Ncdan »

Offline Groover

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Re: Follow up on the H pipe thread a while back.
« Reply #1 on: July 28, 2021, 07:13:05 PM »
Thanks for the report. I also wonder what the difference is between the further back crossover vs the ones closer to the heads, if anyone knows.
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Offline lucian

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Re: Follow up on the H pipe thread a while back.
« Reply #2 on: July 29, 2021, 06:07:07 PM »
Is this one of those "for off road use only" mods?  :wink:

Offline Ncdan

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Re: Follow up on the H pipe thread a while back.
« Reply #3 on: July 29, 2021, 06:31:32 PM »
Is this one of those "for off road use only" mods?  :wink:
The only off road riding I do now Dave is the 2 mile gavel road down to the river house 👍

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Re: Follow up on the H pipe thread a while back.
« Reply #3 on: July 29, 2021, 06:31:32 PM »

Offline Joliet Jim

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Re: Follow up on the H pipe thread a while back.
« Reply #4 on: July 29, 2021, 07:55:37 PM »
Is this one of those "for off road use only" mods?  :wink:

yeah I was off the road in the garage when I did the mod :grin:
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