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MazdaSPEED6 3" SS Downpipe System
The stock downpipe on the MazdaSPEED6 leaves plenty of room for
improvement. Loaded with crimps, sharp bends and two catalytic converters,
there was much to improve upon. Custom Performance Engineering has
completed development of its 3 inch down pipe system featuring mandrel
bent stainless steel tubing and an optional high flow catalytic converter.
The catalytic converter features an all metallic honeycomb design, making
it one of the most durable converters on the market. Please see the dyno
results listed to the left (Dyno is with catalytic converter installed).
Please note that everything on the test car, except the down pipe, was
left completely stock.
The downpipe may be ordered with or without catalytic converters, for use
on-road or off-road, respectively. The off-road version features an oxygen
sensor provision that greatly reduces the occurrence of the P0420
emissions related OBD-II error code. The catalytic converter equipped
downpipe features a metallic monolithic honeycomb catalyst designed for
maximum flow and surface area. With the downpipe installed, one can expect
better than 20 horsepower at the wheels, and a marked increase in engine
responsiveness
The cat-back system is manufactured using polished 304 stainless steel.
All tubing is made in the USA by American Stainless Tubing, Inc.(ASTi)
The tubing is all supplied in a super buff finsh exclusive to ASTi's
manufacturing technology.
Want to see some of the
details?
Check out these photos:
Name Tag,
Bellmouth,
o2 Bung,
Catted Downpipe
The downpipe comes complete with step by step color instructions and all
the necessary hardware required for a
complete and professional installation.
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