Going into an exhaust purchase blindly is rarely a good thing. But
I really had no choice since there is absolutely zero information out
there on the 2015 Dual Setup from BigGun.
I reached out and spoke with Phil at BigGun to see how the new
one-into-two exhaust setup worked on the 15+ Raptors compared
to their single pipe offering. Phil said to expect more low end gains
from the duals and more mid band to high RPM gains from the single
The price difference wasn't huge and the look of dual pipes for these
machines is killer. I also listened to some of the single pipe videos
so I had a rough idea what it would sound like. The idle sound is
very deep and thumpy which is exactly what I was looking for.
The exhaust arrived well packaged. Each pipe was sealed in it's
own plastic bag, the mufflers were then wrapped in numerous
layers of bubble wrap. There were wads of heavy packing card
board in each end of the box and all of the hardware was in heavy
zip lock type baggies.
The install did not go well the first time and I need to elaborate
on the "why". For what ever reason my exhaust did not come with
install instructions in the box and BigGun did not yet have them
posted on their web site.
Me being the impatient FOOL that I am, I figured "who needs
instructions to install exhaust pipes". That was the wrong thought
process because I did NOT install the pipes correctly which resulted
in the chain rubbing the left hand pipe and had I not caught it, it
would have rubbed through in very short order.
I decided that I should probably call and talk to BigGun. So the
next day I called and spoke with Heather who immediately emailed
me out a copy of the instructions and said if I ran into any issues
to give them a call back and they would walk me through the
install and make sure everything was ok.
After reading the instructions I realized how I missed numerous
steps and at that point the best thing to do was to remove all
of the pieces and start over fresh out of the box and follow said
I am glad to say that the instructions were spot on and the second
install went off without a hitch and the pipes wound up exactly
where they should be. Now I do want to be clear and say that this
exhaust has a fair amount of pieces so you need to follow the
None of the pipes should be tightened down until all of the fitting
work is done. You need to take your time and make sure all of the
pipes are well fitted and fully seated into each other before you
start the process of tightening anything.
When it's all said and done the pipes are bent absolutely perfectly
they clear everything without issue. No rubbing and plenty of
clearance from wires.
The finish on all of the pipe work is just shy of a polish job. The
pipes have a very fine satin finish. The neat thing about that type
of finish is that the exhaust gas heat does a nice job of changing
the pipe color. They go from a raw stainless color to a very nice
gold tone which IMHO looks very trick.
I really like how BigGun uses stainless springs with silicone jackets
to keep them from rattling that's a nice touch. The cans are very
solid with clean tig welds and a very distinctive shape and cone.
Included was an extra pair of pipe springs in addition to the spark