so gr yaris
we've got jay from driftworks bringing their new gr yaris track car today and we're gonna
be doing some exhaust development on it and then hopefully working with them to try and figure out
which setups work well um because it's kind of a bit of an unknown at the minute we don't
really know which setups are gonna work work it's got opf and the cat on it it's really
quiet that's what everybody says about it there are already a couple of systems on the market
so yeah it's going to be a case of getting it on lift and having a look and seeing what we can do
so we've got jay from driftworks he's just dropped off their yarish gr um we're gonna be doing
exhaust development on it plan is to offer this as a product we sell um
it's basically james's track car this year so obviously it needs to be like
a track friendly system and we don't want it to be we we might end up offering two
variants like yeah i'd definitely go conservative on this one yeah yeah yeah but you know if you
want to do a straight pipe do a straight pipe as well so we'll offer like a a track friendly
and then like a bazooka straight yeah yeah yeah super megaphone yeah yeah i don't think it's a
super complicated system it's not like a lot of the modern stuff now it's got valves in it
it's obviously got a gps but there's no valves for you know opening up one tip or the other
um so there shouldn't be a whole lot of work in it but yeah i'm kind of i'm excited to see
actually how much noise you can get out of this well that's a fair fair experiment i
suppose isn't it because let's face it it's silent yeah it's like a one liter yaris yeah
i don't know what i mean again it's like it looks like a race car goes like a race car but
sounds like a shopping cart yeah it sounds like a car so yeah it's kind of cool um we'll definitely
get some noise out of it the problem is they could they all end up sounding the same don't matter
what you do with it big silences little silences different diameter pipe work
like we were saying before about the tip sizes and stuff like that all makes a big difference but
sometimes the only standing the same anyway it's hard to be a bit unique we'll come up with
something yeah i mean is a three-cylinder 1.69 for the greatest sound ever in motoring is that not
like is that not the pinnacle yeah is that not like v10 yeah it is exactly the same yeah have
you seen ryan terex i i haven't seen i know he's doing it but yeah i've seen the e36 joke 310
yeah yeah that's pretty cool so maybe that'll be right next to it maybe now i think this is staying
you know it might end up with coilovers and a good set of tyres and wheels yeah i'll have
wheels yeah i'll have wheels wheels sure i have two coilovers wheels and tires and probably some
brake pads on this exhaust and that'll be it oh and a seat a seat that doesn't put your head out
the roof but yeah and then that's it it's james's it's not phil's it's gonna be okay yeah we'll see
yeah i think uh it's still early days with parts as well though isn't it so there's not really
anything available i mean hks seemed to have gone wild but you know i guess it's a bit easier if
you're in japan you can get one quite quickly yeah you've probably had it for a while as well to be
fair they probably had it maybe before they were yeah i'm sure they did yeah available so no it's
just well it'll be interesting there's quite a few people entering entering these into the javelin
sprint series oh really i think they're going to end up with their own class right there's four
because one i think it's fenceport i've already stripped there oh i saw that they've got it all
cut up and yeah well the cage they've got the wrc arches on it haven't they and stuff like yeah i
saw it a picture of it rocket bunny kit on it it is yeah rocky right yeah which is seems crazy but
that's kind of that's kind of half the fun it's like doing stuff before
anybody else has done it i guess because when the cars are so new
it's hard to like like we're saying that you know the parts availability is quite limited
um so like if you want a kit that's the one you can have and it's kind of
if you're going to do it you might as well do it for anybody else does it get the internet points
yeah yeah i was about to say if there's a sema this year is there just going to be 20 of them
all looking the same but they don't think they get them in america do they i don't think they've
i don't think they're important yeah i saw someone wearing the ballet on one of our videos the other
week saying that's cool shame we're not getting them as usual i can't i can't understand why
that would be no it's probably down to well that i was going to say could be down to like
emissions regulations yeah they don't have any of that in the states really
it's the light on the dash that's the test in america isn't it yeah they don't really
have any of that so um because i know this couple of cars that the uk aren't getting
oh right okay um did we get didn't we do something weird with m2 so we couldn't have a competition
exhausted and two here it was something like that they stopped selling the competition exhausted for
some reason i'm not sure well well that was one of the reasons they actually started producing
the competition the s55 in it right because the n55 was no longer emissions complying
right okay like a 20 20 model right so that was why they did the engine swap i think but
i was input the aftermarket and performance exhaust that was something oh they stopped
they stopped supplying that but you can still get it from a dealer i think they stopped all
right i don't know if they started again but yeah there was a point they will break anyway do they
yeah they all break again you said to think with oem parts like that they'd be a bit better but
yeah but let's face it every new car has its things doesn't it you know nothing's perfect
yeah so yeah cool now let's let's make something out of this i suppose few weeks i think couple of
weeks we'll have it done and dusted hopefully um it should be too much for a big job so
yeah hopefully jay will come back and i'll come and get it in a few weeks i suppose it'll make
uh cool wrc noises have the uh anti-lag on it yeah auntie like yeah i wonder if we can have an
anti-lag special exhibit yeah yeah i would do that but spark plug yeah yeah spark plug and uh just
wire it in do the old flame again yeah perfect no thank you very much right so got it up on the lift
now you can see it's as we you know anticipated it's quite a simple system no valves in the rear
section which is nice that's what a lot of car manufacturers are doing nowadays to try and get
a bit of noise at the kind of sportier cars valve rear section allows them to kind of open it up
and still pass the kind of eu noise tests but big fat opf that's what's killing all
the noise at the minute you know these really are these are worse than a cat in that respect
but it's not sensitive so you should be able to remove this without the car knowing and i'm
pretty sure the asian market cars or the jdm cars um don't have an opf because they don't need it
so i imagine that will be probably a kind of cheaper way of getting
a bit more noise at the car without having to have a full exhaust system
whip this off in a minute but i can see the cat up there it's got like a flared joint which attaches
to the opf that's not too difficult to create you know we can create something which bolts onto that
cat no problem um and then as we go further back on the end of the opf we've got a two bolt flange
which again is very kind of uh what you normally see on a japanese car they use a lot of these kind
of two bolt flanges rather than sleeve sections and then the rest of the exhaust the cat-back or
the kind of opf back is uh one piece so we've got we've got three pieces the cat the opf and then
the opf back section which has got a resin like a bottle resonator in it and then a a kind of uh
quite small rear section but it's got really tiny tail pipes um the tail part's quite small
and then the pipes go into the tail pipes are really small and that always looks super puny
on the car it kind of looks a bit silly um so that's something we definitely want to change
so the idea is probably going to be to create two types of rear section
one that's a bit of a kind of track friendly um louder than the original
even with um the kind of opf and the cat still in place there's a lot of people
probably want to keep those and then another rear section which is a bit louder um probably
like a more of what we would call our ultimate style rear silence so where it's a
bit more free-flowing a bit more kind of straight through um and then that'll that'll kind of
that'll cater people that aren't necessarily interested in passing uh trackside noise tests
and things like that they just want you know the loudest thing they can get really without it being
obtrusive and kind of uh you know droney uh and then and then we'll kind of have probably the same
the same middle rear section for both with and without resonator again so that we can knock a few
more decibels off if needed and it's really going to be a case of playing around with different
setups and this is something that we can do with driftworks
obviously they're going to be using the car a lot so it's ideal in the early days where we're
still kind of proving ground on this that we can actually try out lots of different combinations
of with opf without opf with cat without cat and figure out really what sounds the best
obviously the opf is the big killer on these on any modern car really the opf is the most
restrictive thing does take out the most amount of noise um and so if you're not too worried about
removing that from a legality standpoint that is definitely going to be the way to go and i think
a kind of opf delete even with the stock catback will obviously release some more decibels and
probably produce a nicer sound so that's going to be something we want to try too
and then obviously we'll have decat options i think given the way that stock two bolt flange
at the top of the opf works onto the cat and we'll probably have to come up with our own um
kind of uh joiner that allows us to use both or one or the other so there's going to be a bit of a
kind of a brainstorming session thinking about how we're going to do that
so yeah i can definitely see now we're underneath the car and we've got rid of that cover it is like
a flared um flange joint it's not too difficult to reproduce that there's loads of ways we can do
that um and the cat is really tiny looks like it's going to be a bit tricky to get out of that gap
obviously drive shaft in the way because this is four wheel drive that flange is already
pretty tight over to the drive shaft so the packaging is pretty tight under there but um
again it's not gonna be too difficult it's one of those when you've done it two or three times
you know you start you start whizzing them in and out so um
yeah just gonna be a case of playing around with some pipe work now um i think so the first thing
to do is going to be to look at the the kind of opf back section that's where the majority
of the work is we'll obviously have to take some measurements up at the top to get some
flanges made some machining done for that for that turbo flange um but yeah hopefully next time you
see it'll have a shiny cat-back exhaust on so thanks for watching and we'll see you next time