Piper Exhaust | De-Cat Downpipe | Ford Fiesta ST180
TECHNICAL DATA
Piper 3" De-Cat Downpipe | Unleash Maximum Power & Sound | Fiesta ST180
Unlock the true potential of your turbocharged Fiesta ST180. The Piper 3" De-Cat Downpipe is a critical performance upgrade designed to eliminate exhaust restriction at its source, dramatically reducing turbo spool time and unlocking significant power gains throughout the rev range.
This is not a subtle mod. Engineered for the serious enthusiast, this downpipe replaces the restrictive factory catalytic converter with a straight-through 3" (76.2mm) mandrel-bent section, creating a direct path for exhaust gases to exit. Featuring a precision laser-cut 12mm mild steel flange for a perfect seal to your turbo, this component is the key to transforming your car's responsiveness and unleashing a raw, aggressive exhaust note.
Engineered for Maximum Performance:
Radical Power & Torque Gains: By removing the primary exhaust restriction, this downpipe significantly reduces backpressure, allowing your turbo to spool faster and your engine to breathe freely, resulting in tangible performance improvements.
Aggressive Turbo Sound: Experience the raw, unfiltered sound of your turbo spool and the aggressive bark of your engine on overrun. This is the soundtrack of minimal restriction.
Premium UK Construction: Built in the UK from corrosion-resistant T304 stainless steel, this downpipe is a permanent upgrade for your vehicle, backed by a lifetime guarantee.
Designed for Tuned Vehicles: This is a core upgrade for stage 2 and beyond. Please note: This part is not designed to be used with stock exhaust systems and is intended for vehicles with other performance modifications.
Noticeable Weight Reduction: At just 6kg, it's significantly lighter than the heavy OEM unit, contributing to overall weight savings.
OC Motorsport Exclusive:
This is a serious performance component. Each downpipe is manufactured to order to ensure the highest quality and perfect fitment. Please allow 10-14 working days for building before dispatch.
Specifications:
Product Type: De-Cat Downpipe (Turbo Back)
Tube Size: 3" / 76.2mm
Flange: 12mm Laser-Cut Mild Steel
Silencer Count: 0
Material: T304 Stainless Steel
Weight: 6 kg
Ready to Transform Your ST180's Performance?
Click 'Add to Cart' to order this essential upgrade. For guidance on pairing this with a full turbo-back system or tuning, contact the performance specialists at OC Motorsport.
**Please note this part will only fit with piper cat back exhaust - it cannot be used with original exhaust system or other cat back exhausts**
Disclaimer: *This product is a decat downpipe. The removal of a catalytic converter is ILLEGAL for on-road use in many regions, including the entire UK under the Road Vehicles (Construction and Use) Regulations 1986. This product is sold for COMPETITION AND OFF-ROAD USE ONLY. It is the purchaser's sole responsibility to ensure compliance with all local emissions laws and regulations.*

