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NEXT LEVEL PERFORMANCE PRODUCTS BY ZERONINE DESIGN - BECAUSE 'GOOD ENOUGH' JUST ISN'T IN OUR VOCABULARY

09D GPF-Back Exhaust System Carbon Tail Pipes [Focus ST Mk4/4.5]
09D GPF-Back Exhaust System Carbon Tail Pipes [Focus ST Mk4/4.5]
New

FEN041AA

09D GPF-Back Exhaust System Carbon Tail Pipes [Focus ST Mk4/4.5]

£749.99 GBP

Product Overview

Transform the sound, style, and performance of your Ford Focus ST Mk4/Mk4.5 with the ZERONINE DESIGN GPF-Back Exhaust System - engineered in the UK to deliver precision-fit quality, reduced back-pressure, and an exhilarating exhaust note without unwanted cabin boom.

Crafted from premium 304-grade stainless steel, this 3-inch (76mm) bore system has been designed specifically for hatchback models to optimise exhaust gas-flow and retain everyday refinement while providing an unmistakably dynamic tone - enhanced further when you switch into Sport or Track modes.

Each system is precision TIG-welded and finished to perfection, featuring a brushed matte finish, embossed rear resonator, and signature 09D carbon fibre tailpipe trims - a true fusion of performance engineering and motorsport-inspired design.

KEY FEATURES AND ADVANTAGES

KEY FEATURES AND ADVANTAGES

  • 3" (76mm) free-flowing bore reduces back-pressure
  • 304 stainless steel for corrosion resistance and durability
  • Refined internal muffler design eliminates cabin drone
  • Deep, performance tone in Normal mode / Enhanced in Sport mode
  • Signature 09D carbon fibre tailpipe trims
  • Embossed resonator casing for authentic 09 Design detail
  • CAD designed to ensure exact fitment and perfect alignment
  • 3" (76mm) free-flowing bore reduces back-pressure
  • 304 stainless steel for corrosion resistance and durability
  • Refined internal muffler design eliminates cabin drone
  • Deep, performance tone in Normal mode / Enhanced in Sport mode
  • Signature 09D carbon fibre tailpipe trims
  • Embossed resonator casing for authentic 09 Design detail
  • CAD designed to ensure exact fitment and perfect alignment

TECHNICAL DATA

TECHNICAL DATA

Material: 304-grade stainless steel
Bore size: 3.0" (76 mm)
Configuration: GPF-back system (retains OE GPF)
Finish: Brushed matte
Weld type: TIG
Tailpipes: Dual 09D Stainless Steel / Carbon Fibre tips
Fitment: Hatchback models only
Installation: Requires cutting after GPF in factory break point for ease of installation - cutting point info available.
Sound profile: Deep tone in Normal / aggressive pops in Sport

Material: 304-grade stainless steel
Bore size: 3.0" (76 mm)
Configuration: GPF-back system (retains OE GPF)
Finish: Brushed matte
Weld type: TIG
Tailpipes: Dual 09D Stainless Steel / Carbon Fibre tips
Fitment: Hatchback models only
Installation: Requires cutting after GPF in factory break point for ease of installation - cutting point info available.
Sound profile: Deep tone in Normal / aggressive pops in Sport

FITMENT

FITMENT

Compatible with Ford Focus ST model years: Mk4 (2019–2022) / Mk4.5 (2022–onwards)

Compatible with Ford Focus ST model years: Mk4 (2019–2022) / Mk4.5 (2022–onwards)

Frequently Asked Questions (FAQs)

No. The internal muffler design is carefully tuned to eliminate intrusive boom, making it comfortable for daily driving.

No. The GPF-back exhaust is a direct replacement and does not require remapping.

No. This version is specifically designed for the Focus ST hatchback.

Yes. The system fits both pre- and post-facelift versions of the Focus ST hatchback with identical fitment.

Yes, it’s a direct bolt-on system using the original mounting points and has been designed to offer exact fitment.

However, you will need to cut the OE exhaust at a predefined point (otherwise the entire rear subframe needs to be removed to allow access).

Alternatively, we offer a fitting service at our Midlands-based HQ.

SHIPPING AND RETURNS

SHIPPING AND RETURNS

Orders are shipped Monday to Friday, with weekend orders dispatched on Monday. Shipping is handled via FedEx or DHL with full tracking provided.

UK delivery: Typically next working day.

International delivery: Usually 2–5 working days, depending on location.

Under UK consumer law, unused items can be returned within 14 days of receipt for a refund, provided they are in original condition and packaging. Return shipping costs are the customer's responsibility unless the item is faulty or incorrect. Contact the team prior to sending any returns.

Orders are shipped Monday to Friday, with weekend orders dispatched on Monday. Shipping is handled via FedEx or DHL with full tracking provided.

UK delivery: Typically next working day.

International delivery: Usually 2–5 working days, depending on location.

Under UK consumer law, unused items can be returned within 14 days of receipt for a refund, provided they are in original condition and packaging. Return shipping costs are the customer's responsibility unless the item is faulty or incorrect. Contact the team prior to sending any returns.

WARRANTY

WARRANTY

All products are covered by a 12-month warranty against manufacturing defects. This does not cover normal wear and tear, misuse, or damage during installation. For warranty claims, contact support with your order details.

All products are covered by a 12-month warranty against manufacturing defects. This does not cover normal wear and tear, misuse, or damage during installation. For warranty claims, contact support with your order details.

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