Lets compare all makes of DP's shall we???

[PatS4]

[hater]

[Pat-SoCal]

[Gunny to you maggot!]

The mesh is not what the exhaust is flowing through. Inside the mesh is a convoluted section simular to that cheap Pepboys instant bendable tailpipe. This portion first off is not smooth and second it is very susceptible to leaking. The tpye of flex connector that AWE is using is simular to what Porsche has benn using for years. There are 2 bell shaped flanges that sandwich a donut type gasket. This setup allows a swivle type of flex without compromising the seal.

[Ferris TMK]

[s4soldier]

[Bubba-San®]

Almost as heat efficient as wrap but much better for the tube.

[PatS4]

[Ferris TMK]

Technically if a downpipe manufacture would get them certified they'd be legal. However installing downpipes now is techincally illegal because you can't change cats till they are 5 years old or damaged. Running with out cats isn't an option and still totally illegal on the street.

[Todd/A.W.E.]

The multiple weld system we are using has been used on so many different applications, from street to Formula 1, that it is more than a proven design. Check out a McLaren F1 header. Cost no object there.

Our in-house fabricator, Kenny McNeil, has a resume in custom design and fabrication that is beyond reproach. His accomplishments include contract work for Ferrari (F40 header design), AMG, Brabus (full turbo kit manufacturing), Granatelli, among other "famous" names.

We wanted a system that not only removed the warm-up cat, but also improved cylinder scavenging with enhanced exhaust velocity. We believe the transitions from turbine flange to cat/test pipe exit is not matched by any of the other systems currently offered. The multiple weld technique allows us to offer smoother transitions from the differing diameters (3" at the turbine outlet to 2.5" for the main tubing). Turbine exit turbulence is *greatly* reduced with this system.

The Porsche-style flex joints are proven to be more reliable than the standard stainless wrapped bellows found commonly on other systems, and offer a convenient way to swap in our included test pipes. Our included test pipes in the price of $1595 is another benefit our system has over some of the competitors.

Our testing of this downpipe system in conjuction with an off-the-shelf Borla exhaust has shown us the need for chip tweaking. The improved flow allowed us to increase upper rpm boost, while requiring us to adjust fueling a bit higher. We believe that a properly tuned downpipe system *requires* the use of a specific downpipe chip if the downpipes are doing their job of improving exhaust scavenging. Our design requires a change to the O2 sensor coding, too, as we opted to place the O2 sensors close to the OEM position to maintain proper tension on the wiring.

If you have any specific questions regarding this system, please do not hesitate to contact us.