Options
Description
The
ISR
Performance
Long
Tube
headers
for
VQ
are
designed
to
replace
your
factory
header
and
catalytic
converter.
These
long
tube
headers
are
constructed
with
304
brushes
stainless
steel
and
heavy
duty
flanges.
Designed
with
a
stepped
primary,
these
headers
are
built
to
retain
as
much
low
and
mid
range
torque
as
possible
while
allowing
for
good
top
end
horsepower
gains
as
well.
The
innovative
High
Ground
Clearance,
"HGC"
design
places
the
collector
in
a
position
to
maximize
ground
clearance
without
sacrificing
performance.
Each
header
features
2
o2
bungs
placed
downstream
of
the
collector
so
that
you
can
utilize
your
factory
upstream
and
downstream
o2
sensors.
The
downstream
o2
sensor
bung
utilizes
a
flow
restrictor
to
help
avoid
CELs.
What’s
in
the
Box:
-
2x
Stainless
Steel
Long
Tube
Headers
-
2x
2
bolt
exhaust
gaskets
-
2x
Head
to
manifold
gaskets
-
4x
o2
sensor
bung
plugs
-
4x
Exhaust
Nuts
-
4x
Exhaust
Bolts
Because
these
eliminate
the
flange
between
the
headers
and
cats,
these
fit
both
VQ35DE
as
well
as
VQ35HR
&
VQ37VHR.
Our
customers
have
reported
that
they
fit
AWD
and
RWD,
350Z
through
Q50,
LHD
and
RHD,
as
long
as
they
have
a
VQ.
***O2
Extension
Harness
Fitment:
Will
only
work
with
02-04
350z
and
03-05
G35
that
have
the
heated
O2
sensors
with
Blue
and
Green
Connectors***
ALL
vehicles
will
need
their
O2
sensor
harnesses
extended.
ISR
only
makes
extension
harnesses
for
the
early
DE
models.
For
anything
else,
you
will
need
to
extend
your
harnesses
manually.
Compatibility
If you have questions about vehicle fitment, please contact us.
Customer Questions
Question:
Would I need harness extender for an 08 g37 coupe? If so where would I find one?
- Helen
Answer:
Hi Helen, all vehicles will need their O2 sensor harnesses extended. ISR currently only makes plug and play harnesses for the earlier DE engines, so for anything else, you'll just need to manually extend the harnesses by adding wire.
Question:
What is the pipe size/diameter connecting to the y pipe? I already have the isr y pipe and it says the size is 2.75 on that connection. So is this also 2.75?
- Kameron
Answer:
Hi Kameron, on these headers, they are a1-5/8" step up, 1-3/4" runners, and have 2.5" collectors.
Question:
Do I need the harness extender for my 10 G37s sedan ? Or just with what comes in the box?
- Drew
Answer:
Hi Drew, ALL vehicles will need the O2 sensor harnesses extended. ISR just only currently offers plug-and-play extension harnesses for the early DE engines. So for anything else, you'd need to extend the sensor harnesses manually.
Reviews
Rated 4.6/5
based on 7 customer reviews
I put these on my 2013 G37S Sedan and they’re amazing. Welds are immaculate. The inside welds that bolt near the engine head where cleaned up very nicely. 0 Fitment issues. Fill fit any VQ37HR!!
Installed these on my 2018 370z and they woke the car up! I highly recommend installing at a shop if you do not have the confidence or the tools. Fitment was perfect and had no issues pairing this with my motordyne catback e370. Definitely felt an increase in power, went from art pipes to long tube headers which replaced them. For the price to power its worth it. In order for these to work on the 370z you must extend your primary afr sensor, i recommend nisformance for their extensions
Installed on my ‘05 g35 rev up, and dang these are awesome. Love the exhaust note, and power is there. Quality is truly there!
