1 3/4" "P" Clamps
1" wide, 1/8" thick chrome clamps
with a 6 1/2" strap. For mounting
****YOUR EXHAUST SYSTEM WILL
TELL YOUR MOTOR WHAT TO DO****
BE CAREFUL WHAT YOU
They say imitation is the
sincerest form of flattery. Having been so fortunate as to have learned from the
Anti-Reversion Master himself, Jim Fueling, I have been working with this
concept over 30 years, so it's not surprising I am able to offer a superior
Now an improved CNC version, including stock pipe
replacement rings, with enhanced exhaust port flow, less heat radiation into the head,
less reversion. Billet assembly, suitable for 1 1/2" to 1 3/4" head
pipes. Bolt in.
"My clutch never slipped
before!" -- UD
Custom made for your displacement
Torque Peak (TPP) will determine the operating range of your
motor. Typically with stock pipes, this is at 1000 RPM below
redline, sort of a built in rev limiter. On road racers, it is
at or slightly above redline, so the motor will pull to
redline. On flat trackers, it is 1000 RPM or more above
redline, to give over-rev capability, and soften power
delivery off the turn. On a 650, 1 3/4" head pipes give a TPP
of 11,000 RPM-- Useless. Even on a 750, it is over 9500-
useless unless racing. There is no free lunch-- you can only
shift this powerband. Mid-range is what gets it done on
the street. You can have your large OD pipes and still
optimize the TPP for your displacement and RPM range.
Each set custom designed and built for your application.
These inserts must be welded in the head pipes just before the
mufflers or may be butt-welded to effectively
extend the head pipes for a
complimentary Theoretical Horsepower Peak
DO THEY WORK?
..."I have a stock 1978 XS 650 Street Tracker with a full Omar's
kit conversion. I could not believe the
difference. My hesitation/sputtering is gone, my biked picked up (by the
seat of my pants) 10-15 more hp. Your mods are a MUST with anyone with
a 1 3/4" pipe conversion of any kind". -- Gary Renna, NJ
bought your TPOs and EPOs after having much trouble
getting my bike to run right. I have a street
tracker that has a stock motor and ignition setup
with Omar's Mile pipes. Well for the life of me I
could not get it to carburate or run properly.
Twenty kicks or more to start it, hesitation,
sputtering at different throttle openings, and
generally running like... lets just say not good.
Someone mentioned your product, and personally I
thought he was nuts and that this was going to be
some kind of "snake oil" product. Well, I am here
to tell you that my bike flat HAULS @$$, this thing
runs like a scalded dog and begs for more! I cannot
believe the difference your product made. My bike
starts first kick, idles cleanly, and has power
everywhere! I am truly a convert and I WILL be using
your products again on my next build. I would also
like to thank you for your time and assistance on
the phone with all my questions and helping me out,
it was truly a great help. In closing, if you have
anyone that may be skeptical, get their number and I
will give them a call and tell them of how pleased I
am with your products and service. ---
The weather here in Ohio
finally cooperated and I was able to get in an
extended ride on the 650 yesterday, the first since
I installed your EPO's
and TPO's (along with
your jetting recommendation). All I can say
is WOW!! You are some kind of
genius! The bike
runs so much better now, with less vibration and it
even sounds better than before. With your
mods it pulls
smoothly throughout the rev range and feels as
though the torque output has almost doubled. I was
even able to pull the front wheel off the ground
just by cranking the throttle open quickly! It's
never done that before. Finally after several years
of fiddling around with jetting and the like, my 650
runs the way it should.
So thanks for all of your help, I am definitely one
satisfied customer and if anyone wants some feedback
on your EPO's and
TPO's, send them
my way. I'll be glad to share my experience with
them.--- Randy Derr
Although most effective on 1 3/4" head pipes, ALL
EPO & TPO parts have an
"UNCONDITIONAL MONEY BACK
Using the principles of
anti reversion, these limit the backflow from the exhaust
into the intake port during overlap. Flow bench testing has shown as
much as a 53%
difference between outflow and backflow. Most effective with tight lobe
Improves low end and mid-range carburetion, especially with large head
For 1 3/4" head pipes
only, best on 750s, stainless.
Bolt or weld in.
"T" Bolt Clamps
Superior muffler clamping
to help protect your new Head Pipes from
Kreem Blue Shield
the combustion chamber heat that will cause them to turn blue.
This 16oz bottle is enough to protect one set of Head Pipes.
#EDIX38-0450 ..... $47.95/bottle
each, Order 2.
Fits all years
FMF High performance
heavy duty fiberglass muffler packing. Long filament fiberglass is made
especially for 4 stroke mufflers.
More than enough to repack virtually any muffler.