Pro Pipe thoughts?

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Pro Pipe thoughts?

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Tarvis
5 years ago

Hey all,
Having a think about putting a pro pipe (V&H's 2:1) onto my Dyna Evo 80ci.

What are other's experience with them? Is the establishment ok with them or are they too loud? I had heard they were better with 2:1 pipes generally.

They are cheaper than a SuperTrapp - but maybe there's a reason for that.
Cheers
Trav

leachy
5 years ago

Hey Travis,
The V&H 2:1 is a full system so better performance generally? Please correct me if Im wrong but I have only seen SuperTrapp slip on's here. I have a SuperTrapp slip on and am happy with the note that it makes, plus I believe its also compliant, or I believe it is. Got pulled over for a random check and they just looked at it and said nothing.

Regards
Leachy

Tarvis
5 years ago

hey Leachy,
My bad, I should have said SuperTrapp Supermeg. Its another 2:1 - generally pretty well regarded from what I have read, and quite tunable.

I'm keen to move towards a 2:1 for the performance gains, but in the process don't want to torment my neighbours unnecessarily.

Pro pipe is a bit cheaper than a supermeg - trying to work out if I'll be happy with it, particularly noise wise.

fatbat
5 years ago

Hi Travis
I'm a biased supertrapp user and had them on my last three Harleys and a vmax before that. The ability to tune for noise and exhaust flow is a great feature. When you get the bike dyno tuned and have a tuner prepared to dabble with different numbers of discs to get the best tune for your purposes you'd be hard pressed to find a better exhaust for street use. You can eliminate the torque dip that occurs often with other 2-1 exhausts down low in the rev range where most of us ride on the street.

You can do it without being obnoxiously loud. I like the sound with the open end cap. But you can put on the closed end cap (with an additional 8 discs or so to manage flow) and be almost stock quiet.

I reckon they're worth the extra dollars if you don't mind the looks of them which some don't

Good luck bud

John.R
5 years ago

Other thing to consider is most 2 into 1s are quieter on idle then straight pipes, under load they get louder. So around the neighbors it shouldn't be too bad.

John.R
5 years ago

Other thing to consider is most 2 into 1s are quieter on idle then straight pipes, under load they get louder. So around the neighbors it shouldn't be too bad.

Tarvis
5 years ago

Thanks John, that's helpful.
Might have to keep putting the pennies away and hold off for the supermeg.

Where did you get yours from, I'll have to shop around a bit.

Cheers,

Trav

Ken in Cairns
5 years ago

I also have the SuperTrap 2:1 Supermeg.
Ran the closed cap with every disc supplied, very quite bit I felt it did restrict the engine a bit.
Have an open cap and I think 21 discs now.
Not to bad at idle and riding nice, but does get going when fanging.
I got mine from at the time only dealer in Adelaide, Show and Shine.
Rollies in Brisbane sell them now I believe. About $ 1200, but you will recoupe some when you sell ur old system.
Cheers
Ken

fatbat
5 years ago

Most of mine I purchased from the cheapest USA retailer I could find on eBay which always saved me a couple of hundred dollars over buying local.
Not too many local places stock supermeg pipes anyway so you'd end up waiting longer and paying more as opposed to simply ordering direct from the USA.
The likelihood of any local business holding stock of a supermeg to suit an evo Dyna would be slim. Keep your eye on gumtree as you never know what pops up.

robots
5 years ago

I have a Pro-pipe and think bang for buck they are a great pipe. No torque dip
I have put hose clamp on each section of baffle, have put new fibreglass wrap on once. At idle or low rpm leaving a suburb they reasonably quiet.

Also drilled the plug and you can tell it runs out a bit more at higher rpm

The dislikes:

getting axle out is a pain, you have to be smart with bike jack

It does sit out from bike a fair way at back so you do scrape easy, have to be careful as sometimes with any exhaust this can lead to broken head studs if scrape too much

Seen them go for $300-$400 on eBay with all brackets etc, in fact sometimes they struggle to sell
Cheers

Huckleberry
5 years ago

I had to swap out my D and D Fatcat for a Pro pipe as the Fatcat kept snapping exhaust studs off. To me the Fatcat sounded better, but performance between the two is about the same. Both have a nice low rumble at idle, and both sound fruity when the revs are up. The bike was dyno tuned but still had the occasional backfire and pop with the Fatcat, no backfires with th Propipe. As for the axle issue, I just swapped the axle out so it is bolted up on the other side now.

robots
5 years ago

Can you put torque wrench on left side or should it be on the nut

ralphski
5 years ago

done a youtube vid on the V&H short shots and the Pro pipe on my CVO Springer
www.youtube.com/watch?v=hZ7Nm3-yM7E
i like the Pro pipe, but have heard all good reviews about the Supertrap
Oh, always torque off the nut, not the bolt head

Ratbob
5 years ago

Gotta admit I don’t understand running the Supertrapp disc system with an open end cap.
The closed end cap forces the exhaust gas to exit via the space between the discs.
Add/remove discs to tune the flow.
With an open end cap surely the exhaust gas will take the path of least resistance and go straight out the end eliminating the need for any discs at all which to me means you’re spending big bucks for a tuneable system and not using it.
Wadayareckon ?

fatbat
5 years ago

Quoting Ratbob on 18 Mar 2019 08:21 PM
Gotta admit I don’t understand running the Supertrapp disc system with an open end cap.
The closed end cap forces the exhaust gas to exit via the space between the discs.
Add/remove discs to tune the flow.
With an open end cap surely the exhaust gas will take the path of least resistance and go straight out the end eliminating the need for any discs at all which to me means you’re spending big bucks for a tuneable system and not using it.
Wadayareckon ?

I understand your thinking but trust me it works.
The open end cap isn't just one big open hole. It's a convex shape with only a smallish hole. So exhaust flow doesn't just push through easily and uses spaces created by the discs.

When using the open end cap the number of discs still changes flow and noise (dyno proven and seat of the pants). The discs are still working. It's all about reversion and scavenging.
The open end cap mpacts on the number of discs you use compared to when using the closed end cap. I think supertrapp suggests the difference is about 8 discs to achieve equal flow.
For example if you run 10 discs with an open end cap, you'd use 18 discs if using the closed end cap and achieve about the same flow.

When my bikes have been dyno tuned they've always run best with the open end cap and this is common. But the difference with a closed end cap is stuff all.

Ratbob
5 years ago

Quoting Ratbob on 18 Mar 2019 08:21 PM
Gotta admit I don’t understand running the Supertrapp disc system with an open end cap.
The closed end cap forces the exhaust gas to exit via the space between the discs.
Add/remove discs to tune the flow.
With an open end cap surely the exhaust gas will take the path of least resistance and go straight out the end eliminating the need for any discs at all which to me means you’re spending big bucks for a tuneable system and not using it.
Wadayareckon ?

Quoting fatbat on 18 Mar 2019 09:26 PMedited: 18 Mar 2019 09:33 PM
I understand your thinking but trust me it works.
The open end cap isn't just one big open hole. It's a convex shape with only a smallish hole. So exhaust flow doesn't just push through easily and uses spaces created by the discs.

When using the open end cap the number of discs still changes flow and noise (dyno proven and seat of the pants). The discs are still working. It's all about reversion and scavenging.
The open end cap mpacts on the number of discs you use compared to when using the closed end cap. I think supertrapp suggests the difference is about 8 discs to achieve equal flow.
For example if you run 10 discs with an open end cap, you'd use 18 discs if using the closed end cap and achieve about the same flow.

When my bikes have been dyno tuned they've always run best with the open end cap and this is common. But the difference with a closed end cap is stuff all.

Thanks for the explanation Fatbat. Cheers.

dyna13
5 years ago

Quoting Tarvis on 18 Mar 2019 04:08 AM
Thanks John, that's helpful.
Might have to keep putting the pennies away and hold off for the supermeg.

Where did you get yours from, I'll have to shop around a bit.

Cheers,

Trav

If you go down this path and choose to get the extra disk pack let me know as I have a unused pack with longer bolts in shed I could part with. Will sis out the part number and let you know

dyna13
5 years ago

Quoting Tarvis on 18 Mar 2019 04:08 AM
Thanks John, that's helpful.
Might have to keep putting the pennies away and hold off for the supermeg.

Where did you get yours from, I'll have to shop around a bit.

Cheers,

Trav

Quoting dyna13 on 19 Mar 2019 06:18 AM
If you go down this path and choose to get the extra disk pack let me know as I have a unused pack with longer bolts in shed I could part with. Will sis out the part number and let you know

6 Pack disks # 404-6506
12 Pack bolts holds 15/34 disks # 404-7306.
If these suit let me know and work out deal to save you a few bob.

fatbat
5 years ago

Quoting Tarvis on 18 Mar 2019 04:08 AM
Thanks John, that's helpful.
Might have to keep putting the pennies away and hold off for the supermeg.

Where did you get yours from, I'll have to shop around a bit.

Cheers,

Trav

Quoting dyna13 on 19 Mar 2019 06:18 AM
If you go down this path and choose to get the extra disk pack let me know as I have a unused pack with longer bolts in shed I could part with. Will sis out the part number and let you know

Quoting dyna13 on 19 Mar 2019 07:14 AM
6 Pack disks # 404-6506
12 Pack bolts holds 15/34 disks # 404-7306.
If these suit let me know and work out deal to save you a few bob.

Dyna, Travis obviously has first dibs on your disc pack and longer bolts but it he isn't interested let me know via private msg. Thanks

dyna13
5 years ago

No probs Fatbat PM sent

Topics

1/2

Pro Pipe thoughts?

Pro Pipe thoughts?

Tarvis

leachy

Tarvis

fatbat

John.R

John.R

Tarvis

Ken in Cairns

fatbat

robots

Huckleberry

robots

ralphski

Ratbob

fatbat

Ratbob

dyna13

dyna13

fatbat

dyna13