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| Part No: | MGMPS3-827928 |
| Name: | COBB Tuning Down Pipe |
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The engineering that went into the COBB 3” Downpipe
started with the CAD designed investment-cast turbine outlet, made of
304 stainless steel for enduring corrosion resistance and reduced heat
transfer to the engine bay. The shape of the outlet flange makes optimal
use of the tight confines of the MPS3's engine bay, smoothly blending
turbine outlet and wastegate gases. The outlet flange is configured with
two O2 sensor bungs; one to accommodate the stock O2 sensor and another
with a pre-installed plug that can be removed to allow an aftermarket
wideband O2 sensor or datalogging device with easy engine bay access.
A custom spun metal substrate high flow catalytic converter comes next.
This one piece 400 grade stainless steel cat has a much higher flow rate
and longer lifespan compared to ceramic or “brick” style cats. It also
reaches operating temperature faster than other style cats for cleaner
cold-start emissions. A third O2 sensor bung is located immediately
after the cat to be used by the second OEM O2 sensor.
The stainless steel flex section used in the COBB 3“ Downpipe is
internally lined (unlike most flex sections) and provides smoother
exhaust flow and much longer lifespan for the steel braiding. The
placement of this flex section in the factory location (before the first
exhaust hangers) is critical in absorbing engine movement and
eliminating damaging stresses that would otherwise be applied to the
flange, cat, exhaust hangers and chassis. This increases the longevity
of the downpipe as well as downstream exhaust components.
All tubing used in the fabrication of this downpipe is polished 304
stainless steel for increased corrosion resistance and a mirror-like
finish. The 304 stainless steel hangers are cross-welded and well braced
to eliminate a point of fatigue that is evident in other aftermarket
downpipe designs.
The end flange uses the stock donut gasket and factory spring bolts to
aid in flex, longevity and proper fitment. This provides an improved
seal compared to other methods, as well as reduced noise. An additional
benefit is that it makes the COBB 3” Downpipe compatible with any
cat-back exhaust that mates to the factory cat section.
When researching downpipes for your MPS3, consider COBB's
intensive engineering, quality of materials, impeccable fabrication and
all around versatility. The COBB 3” Downpipe is unmatched in the
marketplace!
COBB 3” Downpipe for MazdaSpeed3 Features:
• Increased horsepower and torque
• CAD designed cast turbo outlet for maximum flow
• Minimal bends for less restriction
• 304 stainless steel throughout for corrosion resistance
• Custom spun metal substrate high flow cat
• Internally lined stainless steel flex section
• Three O2 bungs for factory sensors plus aftermarket
• Cross-welded and braced hanger section for added strength
• Polished tubing and cat for attractive finish
• Factory location of flex section eliminates stresses
• Stock donut gasket for optimal sealing and long life
• Compatible with all cat back exhaust that mate to factory downpipe
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