So we've got Corsa VXR primary decat pipe.
So this is the decat pipe for A16 and B16 engined Corsa D VXR's
and all Corsa E VXR's.
So what makes this specific to only the A and B 16 engine Corsa
VXR's is this flange the Z16 Corsa's which were the earlier ones, so between
2007 and 2010 have a different flange.
So this is 2010
onwards, all Corsa VXR's
So it's a full 3 inch
decat
designed as a direct replacement for the standard primary cat so the
big cat hangs off the side of Turbo this is a direct replacement for
that bolt out.
No cutting, no welding.
Fits just as the original one does, so the 3 inch V band clamp onto the
turbo and then the 3-bolt flange at the bottom onto the flex section
which on Corsa D's will be your secondary cat section and on Corsa E's
will be just plain flex section there is no secondary cat on
Corsa E's which is quite a good point to note because a lot of people get
confused about the fact that the Corsa E VXR has only got one cat and it does there's only
one cat on the Corsa E VXR. Obviously fully stainless steel, fully 3 inch
Fully TIG welded as well not just the V-band flange but all of it so
the 3 bolt flange at the bottom both sides and then surfaced flat, so a lot
of people ask does it include a gasket and the answer is no because we
don't need one so as long as the flange
that you are mating it to is nice and clean so if it's our secondary section, that's
not a problem, but if it's the OE one it literally just needs
wire brushing and then exhaust sealing paste, bolt it up and it will
seal just fine.
Even though, it's a 3-inch bore mating up to the slightly smaller secondary
section.
So obviously fully back purged like all of our parts which means that
that weld is essentially just the same on the inside as on the
outside that means that not only will it be more reliable,
It will be stronger it will flow better.
it's obviously TIG welded around the V-band flange as well so
that's nicely ported out so it's nice and smooth which is obviously
the most important part so
The gas comes straight out the turbo into the downpipe here and you
want as much volume there as possible and you want it to be as smooth
as possible.
There are obviously smaller downpipes on the market and they'll do the
same job in terms of noise, but they can't compare in terms of the
ability to make the same power.
the 3-inch bore definitely gives you
more volume in terms of area for gas which is less restriction on the
turbine wheel which just makes more power.
It's just how that works.
O2 sensor boss fully Tig welded again, but in the correct position if
it's slightly rotated around towards the block or slightly rotated away.
There's a coolant pipe, which runs across the engine block here and
that will, you know cause you some fitment issues and then on this side.
There's a rubber coolant hose and then the top of the centre will rub
on that thought it's really crucial that's in the right place there so we
got our standard kind of brushed finishes as well, obviously with as with
all of our Parts they look just as good as they perform full stainless
steel bolts and washers what we don't use is a steel nut and there's
a reason for that, this is a copper nut and over time stainless steel nut and
bolt.
They will basically heat cease together.
So you'll never get them apart.
So we use a copper nut basically so in a year 2 year's, 3 year's, whenever
when you want to remove the decat the copper nut won't
be seized to the stainless steel bolts and it also won't have corroded
like it would have if we used the regular Steel bolt the copper bolt
the copper nut will just wind straight off.
So that's exactly the same theory as why Vauxhall would use copper
nuts and copper fixings on the exhaust manifold for that very reason
So when we're talking about decats we also need to talk about lambda sensor spaces or O2 sensor spacers as
well because a lot of the time most customers aren't looking for a remap.
so
what they don't want on the dashboard is a check engine light or MIL
light or lambda sensor cat failure light on the dashboard, now lambda sensor
spacers sometimes they work sometimes they don't it really depends on the car some
are more sensitive than others it really is it's never something we can
guarantee
they do work for some people and they're not expensive so if the light
does bug you it's probably worth giving a go, but the thing you should
never do which we do see a lot on Instagram from time to time or
somebody fits a downpipe with a spacer and they say my engines
running really lumpy something's not right the decat's messed it up and it's not the decat
that's messed it up 9 times out of 10 what they would have done is fit the
spacer in here now the spacer does not go in the primary O2 sensor
space, it goes in the secondary sensor space which is further down the car
underneath the car on Corsa's
It is essentially between the subframe and the body and sticks straight up so
the straight spacer
fits just fine but do not fit it into that boss there that boss the
sensor that sits in that boss
is for checking the fuelling of the car, checking the air fuel ratio
so checking the car is running OK the secondary sensor all that does
is check that the cats working efficiently so it knows the the gas
that's coming out of the engine because of this sensor here and the
secondary sensor then checks after the cat that it's working OK and
that's why when you remove the cat you get that light because that sensor says hang about
you know something's not right here.
It's not working.
It's not it's not working.
It's that we've removed it.
So you put the secondary sensor into the spacer and then put the
spacer into the hole where the sensor came out of but you definitely
don't put it in the primary sensor boss because that is the sensor used for
checking the gas as it comes out of the engine if you space that out
the car will not run well.
But if you want more noise more power, this is definitely the way to go
Silencer deletes are great and cat back exhausts are great but in terms of
kind of value for money.
this will net you power and noise which a silencer delete won't do.