Every component of a Milletech exhaust is carefully designed and constructed by CAD/CAM computer programs, and then produced into hi-end car products , specially designed for your car.
Everything is made in house and all our products are made to order.
We own a Cnc welding, bending, cutting, forming, brushing & polishing machines. Newest addition to our facility is a clean room environment laboratory for testing and welding.
All MILLETECH products have a lifetime guarantee!!!
Gas tungsten arc welding (GTAW), also known as tungsten inert gas (TIG) welding, is an arc welding process that uses a non-consumable tungsten electrode to produce the weld. The weld area is protected from atmospheric contamination by an inert shielding gas (argon or helium), and a filler metal is normally used, though some welds, known as autogenous welds, do not require it. A constant-current welding power supply produces energy which is conducted across the arc through a column of highly ionized gas and metal vapors known as a plasma.
GTAW is most commonly used to weld thin sections of stainless steel and non-ferrous metals such as aluminum, magnesium, and copper alloys. The process grants the operator greater control over the weld than competing processes such as shielded metal arc welding and gas metal arc welding, allowing for stronger, higher quality welds. However, GTAW is comparatively more complex and difficult to master, and furthermore, it is significantly slower than most other welding techniques
Orbital welding is a specialized area of welding whereby the arc is rotated mechanically through 360° (180 degrees in double up welding) around a static workpiece, an object such as a pipe, in a continuous process.
It is very difficult to achieve the highest standards of quality and safety using manual welding. This is due to certain welding positions, overhead and down-hand welds for example, often leading to faulty welds due to restricted access the user has in these welding positions. In order to have complete control over the weld pool, a perfect balance must be maintained between gravitational force and surface tension at every position of the torch. By using mechanised variants of the technique, certain parts of the welding process are handled by mechanical components. Note that a welder will always be monitoring and controlling the process. In an ideal situation, all welding parameters would be fully programmed before welding is started. In practice, however, the presence of variable constraints means that it is often necessary for the welder to make corrective interventions. With automated welding, the computer-controlled welding process runs completely independently, without the need for any intervention from the operator.
Along with the current methods of using TIG cold and hot wire welding, there has also been steady progress in the development of MIG/MAG/FCAW welding which allows a whole range of new applications.ven within a difficult working environment. Orbital welding can provide reliable welding of reproducible quality using wide-ranging techniques and differing types of technique. This can be performed to a high standard even when using unusual materials, thick walls, small tube diameters and environment.
Stainless steel T316 & T304
Stainless steel is a “steel alloy”, meaning is has an alloy content of at least 11%. Stainless steel does not corrode or rust as easily as ordinary or mild steel, but it is not “stain proof.” This means that if there is a ton of salt on your roads in the winter and moisture, salt, and road grime accumulate on the exhaust system and are not rinsed off on a regular basis during heavy weather, your stainless steel exhaust system will get stains . Stainless differs from mild steel by the amount of alloy or chromium that is mixed with the metal. For example, when mild steel is exposed to the elements and is unprotected (meaning no coatings), moisture and grime permeate the matrix of the metal. Once this occurs, rust forms, and then it’s able to spread fairly easily throughout the metal matrix. Stainless steel has enough alloy content that it creates an oxidized barrier that repels corrosion from spreading into the internal matrix. Our exhausts are all made of T316 stainless steel.
Stainless steel flex pipe
Flexible pipe has a great purpose in exhaust systems. It allows some movement of exhaust sections and prevents cracks on headers and turbo manifolds. They also remove unwanted weight created by rear exhaust pipes and mufflers. So your turbo or NA headers can work without stress. There are few types of flex pipes on the market today. We only use stainless steel flex pipes with inner braided sleeve. This is very important feature.
This added inner sleeve within the flex section prevents premature failure. Braided flex sections without a corrugated sleeve will “puff up” over time and restrict exhaust flow. You will not find this issue on our systems.
This important piece comes after the exhaust manifold and serves to convert the harmful carbon monoxide and hydrocarbon gases into carbon dioxide and water vapor, making the exhaust safer for the environment. Although a car will run without a converter, it is illegal to drive without one in most states. Our catalytic converters are from German company called HJS. They produce catalytic converters for many hi end cars and have the best triple core or S-type converters on the market. We use their hi-flow catalytic core and make our own end caps. So we can adjust different pipe sizes and lenghts.
Cheap catalytic converters have a wound construction. Corrugated metal sheets are “wound” into a cylinder, and stuffed in a can. Such a simple construction methods typically result in “telescoping” of the core center over time, which ultimately destroys the cat.
Fake catalytic converter
Another great product that we use as standard for those who don’t like catalytic converters but want to make their system look like they have them installed is a hollow muffler that looks like a cat. We build them like cat’s but from the inside there is a perforated pipe, made on a cnc machine (from a thicker pipe, for heat control). Perforated pipe is then wrapped with ZT1 acousta fill packaging and then the outer shell is produced. At the end we engrave all markings that real catalytic converters have. So you look legal but you’r not… ready for track!
This is not road legal!
Clampco v-band clamps
These clamps have been proven to be the strongest clamps on the market. They’re made out of stainless steel and once they’re tight they’re not going anywhere.
The modern method of exhaust connection is the V-band stile clamp. With tapered flanges and a matching clamp your exhaust can be held together with the turn of one bolt, and no gaskets. These improvements mean no more burned up gaskets, hard to reach bolts, or dashing off to the parts store to purchase replacement parts just to re-assemble your exhaust. All our v-bands are cnc machined and feature a female-male connection so a leak free seal is achieved.
We make as much parts as we can on a cnc machine or on a water jet. So there is minimal mistake possible. First we measure everything on your car, and then we can make cad/cam preparations for the machine. Our exhaust and muffler hangers are beautiful and lightweight.
Whether you drive a mean race car or a luxury SUV, exhaust tips add hot looks to your tailpipe. Flush edges, angle cuts, and turndown bends-the choices of your own. We can produce any type you imagine. With cnc inner perforation you can choose all types of resonated tips or normal rolled tips.
Thermal barrier ceramic-coatings are becoming more common in automotive applications. They are specifically designed to reduce heat loss from engine exhaust system components including exhaust manifolds, turbochargercasings, exhaust headers, downpipes and tailpipes. This process is also known as “exhaust heat management”. When used under-bonnet, these have the positive effect of reducing engine bay temperatures, therefore reducing the intake air temperature. We offer all our parts as ceramic coated products if you wish so. All parts are sent to T.H. Performance and then they sandblast, clean, spray and cure everything . This procedure takes one day to be finished. After that we assemble everything back to your car.
Silencer Packing Material
Milletech is offering simply the best solution in performance exhaust silencer (muffler) insulation.
We ONLY install Acousta fill ZT1 & PTX silencer packing material made by Culimeta-Saveugard from United Kingdom in ALL our exhausts.
This is the only material that can whitstand 900 °C of continuous heat treatment. There is no loss of particulate or short fibres through perforatio often associated with spun rock fibres and staple glass fibre wool.
The benefits offered by Acousta-fil CE are particularly suited to applications such as straight through mufflers often found on motorbikes and race cars where maximum absorption is required.
As a highly efficient silencer packing, the Acousta-fil® PTX & ZT1 core and effect texturised yarns not only fill mufflers with highly sound absorbent, high heat resistant material but the revolutionary construction of the material ensures the mufflers are filled to their maximum capacity.
The unique method of manufacture allows us to use a variety of fibres and filament diameters including high temperature resistant Glass and Silica. The fibres can be as continuous filament yarns and rovings and also in mixed filament diameter or tex. Our acoustic testing shows that by varying filament and yarn diameters or by using mixed diameters we can achieve a pack with optimum absorption over a particular frequency range.
Features and Benefits
- Reduces silencer skin temperature
- Expand on initial heating
- Resists the effects of pulse
- Choice of fibre chemistry
- Proven on Track and road
- Easily installed in confined spaces
When it comes to turbo manifold design there is actually a lot more to it then just connecting all of the exhaust ports together to feed the turbo. The reality is there is a lot more physics at play. The exhaust flow, pressure, and runner length are all very important in deciding the many characteristics that make up a turbocharged car.
A tubular manifold is one that is custom made for that particular users goal for the car. Most road racing cars will build an avg. runner, equal length manifold that will support great flow characteristics throughout the entire rev range. A car being set-up for drag racing will use a long runner tubular manifold, which will favor flow in the upper rev range. Tubular manifolds are VERY efficient when compared to a log manifold. They offer superior flow characteristics, and offer less back flow of exhaust gases back into the motor. Our tubular manifolds are all back purged tig welded and have a 3 mm pipe thickness.
We can also heat wrap your turbo manifolds and exhaust.