cp-e™ QKspl™ Ford Fiesta ST Off-Road Downpipe

Purchase this product now and earn 26 BoostBucks!

Although more power and great sound are high priority items when buying a 3″ downpipe, the fine details are what ensure that the product will satisfy the end-user for a lifetime.

Also available with a catalytic converter.

Rated 5.00 out of 5 based on 1 customer rating
(1 customer review)


Fiesta ST Off-Road Downpipe

Although more power and great sound are high priority items when buying a 3″ Fiesta ST Downpipe, the fine details are what ensure that the product will satisfy the end-user for a lifetime:

• 5% gains throughout RPM band
• CNC-milled Stainless Steel turbo flange
• Extra O2 bung for adding a wideband sensor
• Laser cut stainless steel bracket
• Laser cut stainless steel gasket adapter
• Full 3.00” mandrel bent 304 stainless steel
• 3/8” thick laser cut flanges
• Included Smart O2 Simulator with Off-Road Downpipe
• Strengthening & Uniform satin finish
• Made in the U.S.A.

Matching the stock turbo, our Fiesta ST Off-Road Downpipe includes a CNC milled turbo flange for easy installation and stock compatibility. Our downpipe is crafted from premium American made “bright annealed” 304 stainless steel and is mandrel bent throughout for less turbulent exhaust flow. We have included three O2 bungs to accommodate the two stock O2 sensors, and to give the ability to easily add a wideband sensor. We offer an optional high flowing catalytic converter that features a metallic monolithic honeycomb catalyst designed for maximum flow and surface area. For those that opt-out of the high flowing cat, the off-road downpipe will include a cp-e™ Smart O2 Simulator to help eliminate the unwanted check engine light.

Also helping to accommodate the stock mounting, cp-e™ has designed this downpipe to use the stock downpipe support mount by welding a laser cut stainless steel bracket onto each downpipe.

cp-e™ has taken the extra step to supply a laser cut gasket adapter with the downpipe. This adapter will allow the installer to install the downpipe to a stock exhaust without the worry of exhaust leaks. Without this adapter the 3.00” downpipe will be larger than the stock exhaust flange, allowing exhaust gases to escape past the gasket. This adapter allows the customer to buy a true full 3.00” downpipe instead of being limited to a downpipe that needs to neck down at the flange. Along with the gasket adapter, the downpipe comes with the necessary hardware needed to mount it to a stock exhaust system as well as an aftermarket exhaust system.

Finally, the downpipe features the all-new finish from cp-e™. This satin finish not only gives a uniform clean finish throughout, but also strengthens the stainless steel and the welds for added reliability. Made in the U.S.A. and backed by a lifetime warranty, all your bases are covered.

While this may not trip a Check Engine Light, we cannot guarantee that all of the codes will be in the “ready” state.

All off road performance parts are intended for off road use only and not for street use.
Not California exhaust compliant | No implied CARB certification | Off-road use only

CALIFORNIA WARNING:Cancer and Reproductive Harm – www.P65Warnings.ca.gov

Weight 15 lbs
Dimensions 24 x 6 x 6 in
Catalytic Converter


1 review for cp-e™ QKspl™ Ford Fiesta ST Off-Road Downpipe

  1. Rated 5 out of 5

    This review is for the version with the metallic cat.

    I’ve only had it installed for a few hours and even less driving time. Additionally, I have snow tires on, so I can’t test it to the full potential.

    From the few spurts of acceleration I’ve had a chance to try, there’s a VERY noticeable increase in torque and horsepower. I am currently running the Cobb Stage 1 93 octane map so I’m not limited by any factory torque limits.

    My kids both said it feels much faster than before. It’s also louder which may or may not be a good thing given I have an MBRP exhaust that’s already on the upper scale of loud exhaust offerings for this car.

    I’ve only driven 30 miles or so but so far no check engine lights.

Add a review