Turbos it is! Here for all to see! Notice, the spool of solder? This is the Turbo Turbine, and Blower parts, there are 4 of them. 2 per turbo (remember this is a TWIN-Turbo set-up). The brass "turbo center", VERY important for a set up like this keeps EVERYTHING on the same horizon to the engine as long as your exhaust headers are horizontally even. Side to side mounting is VERY important too, it must be long enough, cut it a bit "long" trim when all together..... Notice the solder is bent tightly around that brass pipe? This is how ALL of this will be made! The brass is left "long" and will be trimmed a bit and then trimmed again, later as you'll see! NOT glued at this point. A bit more has to be done first! Notice the '57 300's engine setting here, the brass has been trimmed BUT not "short" it will need trimmed to length one more time! ALWAY allow for mistake! You see 4 of the solder made parts, 2 Exhaust turbines, 2 turbo blowers..... Now for some details. Turbo "flange" ring material.....THIN solder! This shows HOW I made those really little Turbo "flange" rings to fill the void on the set-up. So, now to continue.....I got one side "started" BUT be careful, you must leave some on one end or the other specially when doing twins side-by-side... Notice where the Turbo "Flange" ring is in the picture, its labeled, but, it also hides where the solder exhaust turbine meets the turbo center.....These rings? need to have 2 PER turbine intake or power, so in the center, it will have 2 side-by-side. Seen here is the 2 rings BETWEEN or pinched in from the 2 turbine parts, this completes ONLY ONE SIDE! For posing sake, here is the left-hand side done, awaiting the right hand side.... Notice, the WHOLE right-hand side set-up is LOOSE! You HAVE TO, get the distance just right on the outer most Exhaust Turbine.....Once that much is set and glued in place, you can go on to assemble it with super glue (CA).... THEN for those people, who are learning......The air intake is in the middle! CENTER of BOTH turbo's! See: Now this center air intake? It can have a short pipe topped with a K&N air filter, OR can go to something that comes in from the hood, the grill, you name it, FRESH AIR IS BEST! NOT "heated" air from inside the engine compartment! A few has asked me for something like this.....Hope it helps!