If
an
off
the
shelf,
run
of
the
mill,
performance
exhaust
was
good
enough
for
us…
The
PWJDM
Ultimate
GTR
exhaust
would
have
never
been
blueprinted
or
produced.
When
we
created
this
exhaust,
we
had
a
few
conditions
that
we
set
for
ourselves.
It’s
a
decent
size
list…
But
if
you're
planning
a
game
changer…
It
is
what
it
is…
So
they
are
as
follows:
1:
It
has
to
create
power
without
creating
any
irritating
"drone
noises"
at
the
midrange
where
I
like
to
keep
my
rev
needle
85%
of
the
time.
Like
most
true
performance
exhaust
systems,
double-digit
gains
are
expected
and
will
vary
from
car
to
car
with
geographical
location
and
temperature
differences.
2:
It
has
to
have
a
higher
pitch
sound….
something
more
"European"
sounding
like
a
true
super
exotics….
I
was
tired
of
all
the
aftermarket
exhaust
that
was
merely
larger
piping
and
sounded
like
a
diesel
pickup
truck
at
wide-open
throttle.
We
accomplished
this
by
utilizing
a
unique
1-4
reverse
merge
design
that
makes
you
rethink
the
way
exhausts
should
be
designed.
3:
It
has
to
be
3.5"
to
start,
fairly
light
weight
and
relatively
affordable
without
having
to
go
with
a
titanium
setup.
Most
GTR
exhausts
on
the
market
doesn’t
present
much
of
a
value
in
terms
of
what
you're
getting
for
the
price
you
are
expected
to
pay.
Most
are
made
offshore
in
the
orient.
You
can
guess
which
country…
Here’s
a
hint…
They
speak
mandarin.
:)
4:
It
has
to
be
T304-
Stainless
steel
and
100%
hand
TIG
welded
with
CNC
machined
T304
flanges
for
that
perfect
fitment
every
time.
We
also
back
purge
all
of
our
welds
with
argon
gas
so
the
penetration
is
100%.
Penetration
is
a
good
thing!
Trust
me
on
that
one.
5:
It
has
to
sound
exactly
the
same
on
day
5000
as
it
did
on
day
1.
We
accomplished
this
by
not
using
any
fiberglass
packing
material,
which
deteriorates
over
time.
Most
exhausts
on
the
market
will
sound
different
in
a
few
months
because
the
packing
material
has
disintegrated
through
all
the
heat
cycles.
With
our
final
version…
We
realized
that
resonators
weren't
required
on
all
the
exhaust
legs,
only
one
of
them
ended
up
with
a
resonator.
6:
It
has
to
have
smooth
mandrel
bends…
No
90-degree
bends
anywhere
in
the
entire
system.
Flow
is
everything
for
an
exhaust,
too
sharp
of
a
bend
and
it
becomes
restrictive
and
power
robbing.
For
ease
of
install…
We
revised
it
to
have
a
V-band
clamp
which
helps
on
the
install
as
well
as
shipping.
7:
Since
the
GTR
is
a
turbo
charged
sports
car…
I
want
to
hear
the
turbos
spool
and
the
waste
gates
letting
off.
Why
pay
all
this
money
for
a
car
to
only
hear
it
sound
like
a
naturally
aspirated
car
because
the
exhaust
is
so
muffled
and
restrictive.
Sound
cancelation
can
be
achieved
in
a
few
different
ways…
PWJDM
through
years
of
research
and
development
figured
out
a
way
of
reducing
the
exhaust
notes
you
don’t
want
while
keeping
the
notes
you
want
to
keep
without
having
to
use
a
conventional
resonator/muffler.
8:
It
has
to
be
sickest,
baddest
exhaust
period!
1-4
reversed
merge
split
(we
like
to
call
it
the
squid)…
And
has
an
exotic
sound
to
match.
Well
so
much
so...
Soon
after
we
released
this
exhaust,
Greddy
made
a
1-4
version
very
similar
to
ours…
Sure
they
placed
some
resonators
in
the
piping
to
make
it
different
which
is
cool…
The
funny
part
was
that
they
had
4
exhausts
already
for
the
GTR
before
they
came
out
with
this
new
version.
It
just
goes
to
show,
if
it’s
that
good…
Then
it's
definitely
that
good!
It
was
quite
flattering
to
be
honest
with
you.
9:
Oh
yeah,
It
has
to
be
100%
hand
made
here
in
the
USA
and
it
has
to
be
made
1
at
a
time.
These
9
conditions
were
written
down…
And
then
we
went
to
work.
What
we
came
up
with…
Was
mind
blowing!
A
true
work
of
art
that
truly
performs
as
expected!
At
PasswordJDM,
it
wouldn’t
have
been
any
other
way.
And
once
again…
If
there
was
an
exhaust
in
the
market
that
I
would
have
been
happy
with,
I
would
have
NEVER
have
created
this
exhaust.
With
so
many
words,
I
can
tell
you
how
exceptionally
well
this
exhaust
was
created…
The
one
thing
I
cannot
tell
you,
is
how
great
this
exhaust
sounds…
You
almost
have
to
hear
it
in
person.
What
we
ended
up
with
is
a
well-balanced
exhaust
that
has
a
note
worthy
of
any
world-class
super
exotic.
An
exhaust
that
you
can
hear,
but
yet
not
over
bearing.
And
exhaust
that
you
can
feel
in
the
seat
of
your
pants
and
also
on
the
dyno.
A
true
head
turner
that
won't
get
you
a
middle
finger
like
you
would
if
you
rocked
one
of
the
other
"truck
style"
GTR
exhausts.
An
exhaust
that
will
last
a
life
time…
Should
also
carry
a
limited
lifetime
warranty.
We
stand
behind
this
exhaust
so
much
that
it
is
warrantied
for
life.
And
if
you
are
still
on
the
fence,
I
say
you
should
try
it
out...
If
you
don’t
like
it,
send
it
back…
we'll
give
you
your
money
back
less
shipping
which
is
more
than
fair.
We
are
that
confident
about
our
products.
*Limited
lifetime
warranty
is
given
to
the
original
purchaser
of
the
PasswordJDM
Ultimate
GTR
Exhaust.
PasswordJDM
warranties
the
exhaust
to
be
free
of
defects
for
as
long
as
you
own
this
exhaust.
Once
resold,
or
ownership
changes,
warranty
will
be
null
and
voided.