Price $ 375.00   
Same Downpipe constructed in Mild Steel. This Downpipe comes painted with high temperature paint, but can be ceramic coated.

**NEW**
Get  your Downpipe Ceramic Coated black or silver. The price is $200.00 (mild steel downpipes only).

More Technical Information on Reasons to Upgrade:
Engines do not like exhaust gas back pressure. Getting the exhaust gasses smoothly out of the system with a minimum of back pressure is therefore crucial to producing power.  Turbocharged engines like it even less. Yet, it is very clear that just “bigger” is not the answer to “better.”  We are stuck with convertors and mufflers, but there are other areas that can hurt power just as bad if not handled properly.  Specifically, “handling” is the treatment of the gasses passing through the turbine and those vented through the integral wastegate. 

The problems to solve are:
~Matching flow intersections to smooth changes
~Expanding flow area based on aerodynamically correct expansion rates
Avoidance of dumping the exhaust gas into a sudden cavern such as “the middle of Grand Canyon.”
~Keeping the wastegate flow separate from the turbine flow for the greatest distance possible.

These  problems are fundamental to virtually all integral wastegate turbochargers, and are manifest in the concept of turbulence of flow.  Our designs have the same challenges, but we have solved the problems and created the design that “fixes” these problems.

The results are:
~More power per PSI of boost
~Less reversion induced back into the combustion chamber by back pressure, thus moving the entire system away from the knock threshold.
~More ultimate power available in maximum effort turbo systems.

An “integral” wastegate is one built into the turbos’ exhaust housing.  The power problem occurs when the wastegate valve is open and venting gasses into the flow path of the turbine.  This anomaly upsets the smooth but swirling flow through the turbine and thereby creates an additional dose of turbulence upsetting the exhaust gas flow and thus increasing back pressure. The fix to this situation is to separate the flow through the wastegate from the flow through the turbine for as long as possible, or at least until the flow is no longer a violent swirl.  We have done that by isolating the wastegate flow from the turbine and providing a separate pipe for the wastegate for the first 31 inches. Thereafter, the combining of the two flows after the swirl has settled down to virtually layered flow results in virtually zip back pressure increase.  Thus, the power goes up.  Nifty, eh?

Further, we have matched flow areas and intersection changes so that the exhaust gasses make no sudden changes and find their way out of the system with the least possible back pressure.

Is this more complicated?  Yes, without a doubt.  If you can find a way to simplify and gain power, I beg you share your data with me.

Is it more expensive?  Probably, as it is more complex, but costs to the buyer depend mostly on reseller’s mark up.  You will need to compare the costs of connecting the turbo to the cat, the benefits involved, and decide what is best for your application.

As we have built the turbine outlet pipes for the many systems sold through retailers, this new design will clearly retrofit to almost all of those systems.

The turbine outlet pipe is finely crafted from stainless steel and features a flex joint just before the mate up to the catalytic convertor.