Description
ISR
Performance
high
flow
cats
are
custom
made
utilizing
Magnaflow
300
cell
spun
Metallic
substrate
to
be
less
restrictive
than
stock,
Letting
you
gain
power
while
still
converting
harmful
exhaust
gasses,
ISR
HFC
are
Fully
TIG
welded
with
true
mandrel
bends
throughout.
ISR
Performance
HFC
bolt
up
to
factory
or
aftermarket
exhaust
(as
long
as
the
aftermarket
exhaust
is
built
from
OEM
specs).
ISR
HFC
also
retains
the
factory
Oxygen
sensor
location
and
also
adds
a
more
aggressive
Exhaust
tone.
O2
Oxygen
Extension
Pipes
Included,
does
not
throw
check
engine
light
**
All
ISR
Performance
Products
are
Designed
for
Off
Road
Use
Only
**
What’s
in
the
Box:
-
2x
Stainless
Steel
high
flow
cats
-
2x
2
bolt
exhaust
gaskets
-
2x
3
bolt
exhaust
gaskets
-
2x
o2
extension
pipes
Compatibility
If you have questions about vehicle fitment, please contact us.
Customer Questions
Question:
This price is for both high flows correct?
- Chase
Answer:
Yes, these are sold as a set.
Question:
Would this fit the 2008 g35x sedan awd?
- Marvin
Question:
DO THESE COME IN PAIRS?
- COLBY SMITH
Reviews
Rated 4/5
based on 3 customer reviews
no check engine light for me, sounds good no rasp small pops, worth the money
mfs still threw a check engine light after 5 days
No CEL for me on a stage 1 tune so far. They do produce a slight zingy sound at WOT, but that may go away after they are “ broken in”. They bolted up perfectly with my aftermarket dual exhaust on my G37S convertible. I also passed emissions test with these. I don’t notice much power gain tho. The sound is a little deeper.
