AWE Tuning has spent considerable time examining how to maximize the performance and options of this downpipe.

Thorough long term street testing has confirmed that AWE's high flow downpipe, whether equipped with with the 400 cell ceramic catalytic converter (for FSI) or the 200 cell metal catalytic converter (for both FSI and TSI), will not set a Check Engine light or any fault codes in the ECU. For FSI customers looking for ultimate power, AWE's HJS German made metal catalytic converter will provide an additional 9hp over their ceramic converter option.

-  Fully mandrel bent tubing
-  Thick .065" wall T304 stainless steel tubing
-  Fully lined stainless steel flex joint in downpipe
-  Stainless steel MIG and TIG welds
-  Stainless steel T-bolt clamps
-  Included OEM turbo to downpipe gasket
-  In house dyno developed

The downpipe features an integrated resonator to keep the exhaust sound volume civilized even with the elimination of the very restrictive factory converters.

Why did AWE Tuning choose 2.5 inch and not 3.0 inch diameter for their MK5 downpipe? The first prototypes of this downpipe were indeed 3.0 inch, but they found that the effort it took to move the large mass of air in the 3.0 inch system at lower rpms resulted in a loss of torque with very little offsetting gain up top.