 Hello boys and girls, welcome or welcome back, if you've been to my channel before, welcome back if you're new, consider subscribing, like the video, let's get to work. Today we're gonna compare TGVs, injectors and fuel rails between an 06 and an 07 STI. 06 STIs have side feed injectors, 07 and up have top feed injectors. Although there is a lot of different options for the top feed injectors, aftermarket injector dynamics make very nice top feed injectors for all the Subarus, but not many companies make side feed injectors. And most tuners do not like to tune Subarus with aftermarket side feed injectors. That is why I decided to convert from side feed to top feed, hopefully gain a little bit of more power and be ready in the future if I ever do go to a bigger turbo and bigger intercooler, the car is going to be ready. As of now, my setup, the factory side feed injectors, they are working at their peak power so it's time to convert. Figured I got everything apart, might as well do the conversion and instead of buying aftermarket parts, aftermarket fuel rails, aftermarket TGVs, TGVs, TGV stands for tumble generator valve, I decided to go by used 07s, TGVs and fuel rails. It's a direct bolt on, there is a few changes I gotta do here and there, but the ID 1050s, what I'm gonna get the 1050 injectors by injector dynamics will fit no issues, I just have to look instead of for an 06 STI, I gotta look for them for an 07 STI. So this is what we got, this one here is from an 07, this one more complete one is from an 06, from my 06 STI. So I got one injector out, let's look at the side feed ones to understand what this is all about, so this is the injector, as you can see these are the factory injectors, you can see obviously it took it out of here, I see there's a hole, there it is and then let's move on to the 07, see that hole is here, so that's the feed line, so this is your pressure line here and that feeds the injector, as you can see it's on the side, here this is the pressure line, that's the feed line here and it feeds it from the tap, so injector on the 07 it mounts in between, injector goes down there, also the hole is smaller on the 07 and this the fuel rail fits over the injector, over here on the 06 you can install the fuel rail and these just pop out, one screw, there's this little kind of a small bracket that holds it in place, the small Torx bit screw and that's it, easy to replace on the 07 you got to remove the fuel rail further to remove the fuel injectors, all right what else is different, there's a looks like the pressure valve is in a different spot on the 07, it's right here on the 06, there is only one hookup per side for the TGVs, as you can see there's nothing on this side and there's two plugs on both sides, on both sides here on the 06, on both passenger side and driver side, see on the 07 it's just here, these seem to be in the same spot, not sure this could be some kind of a vacuum line or your EVAP line, not entirely sure, I'm gonna figure this stuff as I go, all right what else is different is looking at the top, you can see the 06 the flaps are larger and these are smaller, on the 07 the flaps are smaller and these are larger, let's flip them over, all right flipped over 06s, you can see look at this hole where the injector sits, it's much bigger than on the 07, see what I mean, it is there's a difference, you can tell how much bigger these are and how tiny, just looking at the, straight from the top the gap here is much smaller and the 07 is much bigger, so out with this, in with this, but we're gonna do a lot of changes, we're gonna get rid of these dividers here, we're gonna get rid of the motor, well we got both sides so it's twice the work, we're gonna get rid of the butterflies here, this shaft remove this and bore out and bore this out, clean cut it out and clean it up, so it's a nice smooth passage and I am gonna try and weld the holes up, so there's gonna be four eight holes total, welded up with low temperature aluminum rods, these guys here, we're gonna do it properly and I still have to remove these two 10 mil bolts, this one was sticking out a bit, I tried PB blaster and vice grips but it just broke again, so what I'm gonna do is I'm gonna weld a nut to it and try that way, worst case I'm gonna have to drill it out, I'm probably am, to a bigger hole and install some helicoils in it, I'm not gonna show this, I did helicoils in a different video when I was doing calipers, I think one of these, one of these in the back, the main bolts that hold the caliper has a helicoil and it's been fine and one in the back as well, a lot of times when these steel bolts sit inside an aluminum body and you go to take one out and it doesn't want to go and it doesn't matter if you're gonna spray half a gallon of PB, heat it up, go in and out slowly, the thread's gonna strip, you know, you're just gonna be lucky if you take the whole bolt out so you're gonna have to drill it out, when I did the caliper, the front one I believe did come out, the rear one broke, I ended up drilling it out, but both helicoils seem to be holding up, all right so I just finished drilling, remember the broken bolt, I had to drill it out, welding a nut did not work, it's just a too little of a nut, the welds kept breaking, so it was a pain because it's so little, but I got a surprise, not a pleasant one, you can see I, this is the 07 by the way, TGV, I just wanted to check if I'm aligned because I'm about to thread the new hole so I can install a helicoil and you can see I got three bolts in there, okay, they are in, I got another one here and these two do not line up, they are about halfway, no bueno, so now I got the two side by side and now that I'm paying attention to such a small detail, you can see these holes line up with the shaft and these don't, they are offset, why do they do this, why, why, why, all right I only have one choice, I was gonna, I was thinking about drilling a single hole and threading it in like a 12mm right in the middle between the two, plenty of meat here but I looked at the intake manifold and there just like empty space underneath here in the middle so that's not gonna work, so what I gotta do is I'm gonna fill these in with aluminum and re-thread where it needs to make a new hole and re-thread where it needs to be, all right I actually never done this before but it can be that difficult, just gotta get it hot, all right I'm just taking too long, gotta bust out the big boy, all right so I got a little bump going, gotta file it down, trying to be as flat as possible, this looks promising, this is the crucial part, if I'm gonna be off that new 10mm bolt will not go in, so we got a little starting point right here, so looks like it did go through, although I measured it, doesn't matter, let's see if we're lined up, looks like we are, difficult to see, let's put some threads in it, you saw me heat up the body of the TGV, not the the hole inside, because you want this thing to melt, if I were to hold the flame directly to the rod then this would heat up and this has a lower melting temperature than this aluminum body and this would simply not stick, that's why I took the time and heated it up here from the side, so I mean this whole thing was super hot, even on the edges here or here but needed to reach that temperature so this basically melted to the touch, so it would stick properly and it worked, it's good stuff these aluminum rods