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Performance, with a distinctive deep Harley-Davidson sound. A sound that makes everybody take notice. It triggers an emotion. Enhance that with Blow Performance Exhausts.
Our qualified engineers have worked with some of the biggest names in competitive racing. With racing you must get it right every time. The design, materials and coatings are everything and if you can make the exhaust system perform, look, and sound amazing then you have nailed it.
Blow Performance Exhausts has a design and development team with over 50 years’ experience in performance engine work.
The team has supplied Industry White Papers such as “The Misunderstanding of Back Pressure”, “Reversion the Myth of Back Pressure” for Harley-Davidson Workshops and Bike Builders world-wide.
Our product is metallurgically sculptured both externally and internally with the highest quality metals, materials, and coatings to resist faults, corrosion, and overheating.
We specifically design and manufacture for Harley-Davidson Big V’s. Our focus and dedication are purely for this market.
Our 3-Step exhaust systems are designed to work with the exhaust inertia pulse and give a broad power band on 80ci -131ci EVO & Twin Cam Engines as well as 107ci - 131ci Milwaukee Eight Engines. Blow Performance Exhausts are 3-step headers and NOT to be confused with straight drag pipes.
Our product dramatically improves horsepower and torque with an amazing sound, the ultimate rock band of exhaust sound. Customers compare the deep note to a V8 speed boat in water and V8 hot-rods.
We also offer a selection of performance baffles for those that require a softer sound and still have that distinct Harley-Davidson throb. Our 3-step headers are designed for performance and are at their best without collectors, mufflers, or baffles.
Available in 3 Layered Showroom Chrome and high temperature resistant Ceramic Matte Black exhaust pipes, with a choice of Showroom Chrome, Ceramic Matte Black, and Solid Rose Gold Copper heat shields.
DIFFERENT BETTER
Blow Performance Exhausts first primary length is close to the exhaust port. This prevents a sudden drop in velocity due to a volume increase from head port to exhaust tube, the first step helps prevent reversion, giving power at low RPM's. Steps placed further down the pipe create pressure drops in the flow of the gases and increase power at mid and higher RPM's.
Specifically designed and calibrated for piston to valve synchronization, the pressure wave begins to travel down the tube. When it reaches the end of the tube it reverses as a vacuum wave and comes back towards the cylinder. Our tuned headers time that wave to hit right around the closing of the exhaust port, this boost scavenges residuals out of the cylinder while the intake begins to fill. (Scavenging is the effect generated by harnessing the inertial energy of a high velocity exhaust gas pulse.)
The best performance exhaust system has no back pressure. This is misunderstood and confused with the pressure wave. A high velocity pulse of exhaust gas carries energy, as the pulse moves through space it displaces the following volume behind it. This generates a low-pressure zone like a weak vacuum. Scavenging effect is created, and a low-pressure area is left in the vacated cylinder ready for the incoming intake charge.
DYNO TUNING AND TUNERS
We do not supply map settings for our exhaust systems as no two engines are the same hence, for maximum performance we encourage having your engine dyno tuned after installation by a professional dyno tuner. Every time you change air-cleaner or exhaust you need to retune your engine.
Aftermarket Tuners are not needed; however, you can install any of the top branded products. What is important when using Blow Performance Exhausts is a performance air-cleaner and dyno tuning after installation. Air in and out with the right mix in the middle makes all the difference.
DISTRIBUTION
We distribute to 35 countries from our USA and Australian warehouses.
WARRANTY REPLACEMENT
2 years full replacement policy. We currently boast a 1.8% failure rate, this includes customer incorrectly installing our exhaust systems.
Blow Performance Exhausts is an Australian Company. We manufacture Harley-Davidson performance exhaust systems for closed course competition. Please check your local EPA authorities for street use.
CONTACT
All communications to the Australian office.
[e-mail]
[phone]
FACEBOOK @blowexhausts
INSTAGRAM @blowperformanceexhausts
KZbin / @blowperformanceexhaus...