The AMS "Widemouth" Downpipe is the most power producing and well designed downpipe on the market. After months of development and testing AMS has created the best flowing downpipe possible. Using a CAD designed cast o2 housing AMS was able to obtain every angle AMS wanted for maximum flow and perfect fitment.
OEM Design Leaves Room For Big Improvements
The turbine outlet on the stock turbo is a cast piece with a rather complex geometry. It hugs the back of the turbo pretty tightly and has a small diameter outlet, necking down to around 2.25” before it enters the actual downpipe. The discharge from the turbo’s internal wastegate is introduced right at the point where the exhaust flow exits the turbine and the entire gas flow is then forced to make a tight turn all in a small area.
This creates a lot of turbulence and if the exhaust gas volume is increased by running other power increasing mods, this juncture is an area where a lot of backpressure will be created. Due to the space constraints, it is real hard to design a low backpressure fabricated tubular part to fit in the area allowed that is actually better than stock.
Removing Restrictive Design Constraints Allows For Maximum Power
By making the turbine outlet section a casting, AMS was able to maximize the tight space allowed for the O2 housing and downpipe. By using three dimensions to make a higher volume, straighter path from the turbine housing to the downpipe itself AMS achieved the best exhaust flow and power increases without sacrifice. This downpipe provides more than enough flow for anything from stock to the biggest upgraded turbos available making it the last one you will ever have to buy!
Better Than OEM Quality, Durability And Fitment
Unlike the competition, our downpipe is completely made of 304 cast stainless steel, including the flex section and flanges, for rock-solid durability. No thin, cheap tubing that can crack over time from engine movement and give you headaches down the road. Precise fitment makes for ease of installation and we provide all of the gaskets and hardware needed. We even incorporated a bung for a wideband gauge with a plug included.
Ordering from DriverMod Industries
DriverMod Industries is an Authorized Dealer for all aftermarket performance parts so we only sell genuine and genuine automotive parts and accessories.
Order updates and tracking
Our goal is always complete customer satisfaction. After you place an order, you will receive an email confirmation of y our order along with your invoice. You can log into our website 24.7 to check on the status of your order anytime. All orders are processed Monday through Friday from 10AM to 6PM MST as soon as it is placed. Once your order ships, we also email you a tracking number so you can track your package anytime. If you have any questions about your order don't hesitate to contact us.
6 distribution centers for fast shipping
We ship from 6 different locations around the United States so you receive your parts as quickly as possible. Not all of our warehouses stock all the same parts, so the closest warehouse to you that has your part in stock is where we will ship your order from to ensure quick shipping. We ship from Arizona, Pennsylvania, Texas, Nevada, Michigan, and California.
Secure online ordering
Online security is our priority! We handle all payments through a secure payment processor as well as a secure payment gateway. This means that we never see or store your credit card information. We also other payment methods such as PayPal, Affirm Financing, Amazon Pay, Apple Pay, Google Pay, Venmo, and more!
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