PUT ON THE STACKS TACK - didn't cut the piggies

[pBrain]

I put on a nice set of 36" stacks and the girls sounds nice.  I decided not to cut the piggies since the stacks covered them completely and I figured, you can't see them anyway.

Well now I know why I think it was important to cut them off... 'backpressure'.  <--Please correct me if I'm wrong.

I think that going out of the piggies, then still having to push out the extra inch (even though it's a 4" opening) is causing some additional backpressure.

[BF]

Consider yourself corrected.  

The "back pressure" is at the baffles....not the piggies.  

There are twelve baffles in your exhaust.  

People usually start with cutting the piggies...then progress to drilling the rear baffles...then some even progress to the Ragnar Cut (gutting the rear baffles).  

Alot of people regret doing any or all of that once it's done.  

Before you go and cut the piggies off, you might want to search the forum for drone/droning.  

The entire reason for the piggies is to get the exhaust note out to the rear of the exhaust tips.  Cutting them off will cause the exhaust to resonate inside the exhaust can/stacks before it exits out the rear of your exhaust/stacks/tips.  

That resonance is called drone.  Some folks don't seem to be effected by it (much)...some it effects greatly.  

Your unmolested exhaust is only unmolested ONCE.  They don't make anymore of them.

[8Track]

Can the piggies be reinstated? The previous owner cut mine off.

[The emperor has no clothes]

Can the piggies be reinstated? The previous owner cut mine off.

I think MarkT sells the piggie end caps (not the right term) on his website.

[hubcapsc]

Can the piggies be reinstated? The previous owner cut mine off.

I think MarkT sells the piggie end caps (not the right term) on his website.

The MarkT solution is probably the coolest, I have a tourer pipe I might want to turn into
an Interstate pipe that way.

There's people who have just fitted on copper plumbing to replace their piggies and
were happy with it... the cutter needs to have left nubs for that solution, though...

-Mike

[pBrain]

Thanks BF.  Exactly what I was looking for.

I do get a slight droning and since I suffer from sinuses, it does a number on my head.

I am just going t leave well enough alone, then.  I love the stacks and the piggies don't bother me, so they're staying.

[BF]

Can the piggies be reinstated? The previous owner cut mine off.

It depends.  If your piggies are cut flush off at the end of the can, then the MarkT option would work. 

Contact MarkT.  He sells what he calls piggie plates.  It's the end of the exhaust can sliced off with the piggies intact.  You can weld them onto your can. 

If there's about 3/4" to 1" of the piggies left, then some people have soldered copper pipe onto what's left of the piggies to extend them. 

[wingrider02]

Mine were cut off flush from the original owner.  The second owner tapped the piggy holes with a 1/2" tap if I remember right, and added copper pipes to simulate the piggies.