Pfadt Power Products now brings you a race-proven Tri-Y header
design making more HP and Torque at an affordable price!
1150030 C6 Z06 Complete Header, X-Pipe, Gasket, O2
Sensor
Extender Package with Cats Retail $2,100
1150031 C6 Z06 Complete Header, X-Pipe, Gasket, O2
Sensor
Extender Package without Cats Retail $1,833.33
Pfadt Race Engineering is taking its expertise in manufacturing
well-engineered high performance suspension components and
implementing it in a new breakthrough Tri-Y header design for C6
Corvettes! Immediately setting itself out from the pack, the
headers feature what you have come to expect from Pfadt:
motorsports design technology in a street-performance Corvette
product. The Pfadt design takes proper exhaust flow to a new level
by pairing non-adjacent cylinders together to create a
super-scavenging effect with the 4-into-2-into-1 (Tri-Y)
construction. In this system, the exhaust flow from individual
cylinder pulses are optimized to suck air into the combustion
chamber from the intake. This creates a much more efficient power
curve that results in a greater amount of usable torque (called
torque under the curve) in the mid-range, while not sacrificing any
top-end power for peak numbers. Take a look at the highlights
below:
TRI-Y Design, 4-2-1 tube merging
Makes much more torque under the curve, while
still increasing top end HP
1.75/2" tube diameter
CNC flanges with OEM locating features
Fully hand-TIG welded on-site
T-304 16 Gauge Stainless Steel
Fully Brushed Stainless Steel Finish
V-Band Clamp connections
Equal length long tubes
1-piece X-Pipe available w/ and w/o Cats
Full 3" collector and X-pipe
Comes with bullet-nosed flange bolts for
installation
Available with 2 or 4 O2 Sensor extenders
Available with Cometic Multi-Layer Steel gasket
upgrades
Exhaust system with Cats is 24lbs lighter than
factory
Exhaust system without Cats is 27lbs lighter
than factory.
Made in Salt Lake City, Utah
As you would expect, the beginning of a great header begins with
a lot of hard work! We began our journey with a lot of number
crunching. There are two main ways that a properly designed set of
headers will make more power:
Removing Restrictions -By reducing pumping
losses you can increase the overall velocity of the exhaust gas
coming out of the cylinders and make more power! We settled on a
final tube diameter of 1.75 primaries and huge 2" secondaries which
flow into one final 3" collector. This gradual step up in tube
diameter ensures you will have great flow up to power levels of
850+whp. The Tri-Y design is a whole-different animal than a
traditional 4-into-1. The unique aspect being that the combination
of 1.75"/2" tubes supports horsepower levels at and above the range
of a standard 1.875" 4-into-1 design.
Pressure Pulse Tuning-Each time a volume of
exhaust gas flows out of the head and into a collector, whether it
be a Tri-Y or a 4-1 header design, when it comes in contact with a
change in cross sectional area like a collector there is a negative
pressure pulse sent back up the tube and back into the head at the
speed of sound. This negative pressure pulse when tuned correctly
can help improve scavenging by sucking fresh air into the cylinder.
To take full advantage of this effect the lengths of the tubes must
be designed to the proper length. One of the big reasons why a
Tri-Y setup offers superior low end performance is because the 3
collectors in a Tri-Y let us optimize scavenging at both high and
low RPM, rather than just one RPM range like in a typical 4-1
header.
Mid-Pipes with or without Catalytic Converters The mid-pipe will
house your cats should you choose to run them. The cats being
offered use a high flow Metal Matrix design, are extremely high
quality and made in the USA, so you can be sure they will last you
quite a long time. Typically you can expect more HP with a cat-less
setup, but the cats are great for reducing some exhaust emissions,
cutting down on both the strong fuel smell from a true performance
tune and also slightly muffling the sound of an aggressive exhaust.
For the vast majority of applications the catalytic converters are
the only option. All of our Pfadt Tri-Y header products are
intended for off-road use only, but for those looking for that last
extra bit of HP a non-catted mid-pipe is available. The cats will
be welded directly into the mid-pipe instead of welded and bolted
to a flange, we chose to do this because it eliminates one more
potential spot for leaks and misalignment. Our kits have the option
of adding 2 or 4 Oxygen Sensor Extenders depending on if you have a
mid-pipe with or without catalytic converters.
X-Crossover Design The crossover portion of the mid-pipe is
important because it provides not only pressure and flow
equalization between the left and right header banks, but also adds
one more change in cross sectional area to help with scavenging.
Just like the position of our Tri-Y collectors, the position of the
X must be tuned to the proper length. We tried several different X
pipe positions before settling on the final one. Our dyno tuning
proved that where we positioned our X was making the most power
over other positions with this particular header design. The
differences weren't massive, but enough to prove that position 2
was the clear winner in midrange torque without much effect on top
end power. Position 2 is the position we decided to run with!
Price Includes O2 Extender Harness and Gaskets!
|