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Milltek Sport exhaust system parts for 2021-2023 Ford Mustang 5.0 V8 Mach 1 (part SSXFD420): pipework, silencers and polished silver tailpipe tips }
Milltek Sport exhaust system parts for 2021-2023 Ford Mustang 5.0 V8 Mach 1 (part SSXFD421): pipework, silencers and black tailpipe tips }
Milltek Sport exhaust system parts for 2021-2023 Ford Mustang 5.0 V8 Mach 1 (part SSXFD422): pipework, silencers and black tailpipe tips }
Milltek Sport exhaust system parts for 2021-2023 Ford Mustang 5.0 V8 Mach 1 (part SSXFD423): pipework, silencers and burnt titanium blue tailpipe tips }
Milltek Sport exhaust system parts for 2021-2023 Ford Mustang 5.0 V8 Mach 1 (part SSXFD416): pipework, silencers and polished silver tailpipe tips }
Milltek Sport exhaust system parts for 2021-2023 Ford Mustang 5.0 V8 Mach 1 (part SSXFD417): pipework, silencers and black tailpipe tips }
Milltek Sport exhaust system parts for 2021-2023 Ford Mustang 5.0 V8 Mach 1 (part SSXFD418): pipework, silencers and polished silver tailpipe tips }
Milltek Sport exhaust system parts for 2021-2023 Ford Mustang 5.0 V8 Mach 1 (part SSXFD419): pipework, silencers and burnt titanium blue tailpipe tips }
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Milltek Sport Cat-Back Exhaust - 2021-2023 Ford Mustang 5.0 V8 Mach 1
Subtotal: $3,014.00
Vendor: Milltek Sport
SKU: SSXFD420

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Overview

Upgrade the Ford Mustang 5.0 V8 Mach 1 (2021-2023) with a Milltek Sport cat-back exhaust. Milltek builds each system around the car it fits: mandrel-bent T304L stainless pipework, a larger bore than stock for freer flow, and a tuned sound you choose, from quiet and refined to loud and uncorked.

Sound options

  • Valved systems let the car switch between quiet and loud.

Choose your setup

  • Sound: the system type and sound level.
  • Tip Finish: the tailpipe trim.

Cat-back systems: compare every part number

Part # Sound Tip finish Pipe size Fit time Race/Track only
SSXFD420 Active Valved Cat Back with H Pipe and GT-115 / 4.5' - (Loudest) Polished 2.76" (70.00mm) 1.00 to 2.00 hours -
SSXFD421 Active Valved Cat Back with H Pipe and GT-115 / 4.5' - (loudest) Cerakote Black 2.76" (70.00mm) 1.00 to 2.00 hours -
SSXFD422 Active Valved Cat Back with H Pipe and GT-115 / 4.5' - (loudest) Brushed Titanium 2.76" (70.00mm) 1.00 to 2.00 hours -
SSXFD423 Active Valved Cat Back with H Pipe and GT-115 / 4.5' - (loudest) Burnt/Blue Titanium 2.76" (70.00mm) 1.00 to 2.00 hours -
SSXFD416 Active Valved Cat Back with X Pipe and GT-115 / 4.5' Polished 2.76" (70.00mm) 1.00 to 2.00 hours -
SSXFD417 Active Valved Cat Back with X Pipe and GT-115 / 4.5' Cerakote Black 2.76" (70.00mm) 1.00 to 2.00 hours -
SSXFD418 Active Valved Cat Back with X Pipe and GT-115 / 4.5' Brushed Titanium 2.76" (70.00mm) 1.00 to 2.00 hours -
SSXFD419 Active Valved Cat Back with X Pipe and GT-115 / 4.5' Burnt/Blue Titanium 2.76" (70.00mm) 1.00 to 2.00 hours -

What comes with each cat-back

  • SSXFD420: 2 x Adaptor for OE Downpipe; 1 x H Pipe Assembly; 1 x Left Hand Axle Pipe; 1 x Right Hand Axle Pipe; 1 x LH Rear Silencer (Dark Horse & Mach 1); 1 x RH Rear Silencer (Dark Horse & Mach 1); 2 x Valved Outlet Pipes inc Actuators; 1 x Rear Silencer Hanging Bracket Set; 4 x Polished 4.5" Trims; 115 GT
  • SSXFD421: 2 x Adaptor for OE Downpipe; 1 x H Pipe Assembly; 1 x Left Hand Axle Pipe; 1 x Right Hand Axle Pipe; 1 x LH Rear Silencer (Dark Horse & Mach 1); 1 x RH Rear Silencer (Dark Horse & Mach 1); 2 x Valved Outlet Pipes inc Actuators; 1 x Rear Silencer Hanging Bracket Set; 4 x Cerakote Black 4.5" Trims; 115 GT
  • SSXFD422: 2 x Adaptor for OE Downpipe; 1 x H Pipe Assembly; 1 x Left Hand Axle Pipe; 1 x Right Hand Axle Pipe; 1 x LH Rear Silencer (Dark Horse & Mach 1); 1 x RH Rear Silencer (Dark Horse & Mach 1); 2 x Valved Outlet Pipes inc Actuators; 1 x Rear Silencer Hanging Bracket Set; 4 x Titanium 4.5" Trims; 115 GT
  • SSXFD423: 2 x Adaptor for OE Downpipe; 1 x H Pipe Assembly; 1 x Left Hand Axle Pipe; 1 x Right Hand Axle Pipe; 1 x LH Rear Silencer (Dark Horse & Mach 1); 1 x RH Rear Silencer (Dark Horse & Mach 1); 2 x Valved Outlet Pipes inc Actuators; 1 x Rear Silencer Hanging Bracket Set; 4 x Burnt Titanium 4.5" Trims; 115 GT
  • SSXFD416: 2 x Adaptor for OE Downpipe; 1 x X Pipe Assembly; 1 x Left Hand Axle Pipe; 1 x Right Hand Axle Pipe; 1 x LH Rear Silencer (Dark Horse & Mach 1); 1 x RH Rear Silencer (Dark Horse & Mach 1); 2 x Valved Outlet Pipes inc Actuators; 1 x Rear Silencer Hanging Bracket Set; 4 x Polished 4.5" Trims; 115 GT
  • SSXFD417: 2 x Adaptor for OE Downpipe; 1 x X Pipe Assembly; 1 x Left Hand Axle Pipe; 1 x Right Hand Axle Pipe; 1 x LH Rear Silencer (Dark Horse & Mach 1); 1 x RH Rear Silencer (Dark Horse & Mach 1); 2 x Valved Outlet Pipes inc Actuators; 1 x Rear Silencer Hanging Bracket Set; 4 x Cerakote Black 4.5" Trims; 115 GT
  • SSXFD418: 2 x Adaptor for OE Downpipe; 1 x X Pipe Assembly; 1 x Left Hand Axle Pipe; 1 x Right Hand Axle Pipe; 1 x LH Rear Silencer (Dark Horse & Mach 1); 1 x RH Rear Silencer (Dark Horse & Mach 1); 2 x Valved Outlet Pipes inc Actuators; 1 x Rear Silencer Hanging Bracket Set; 4 x Titanium 4.5" Trims; 115 GT
  • SSXFD419: 2 x Adaptor for OE Downpipe; 1 x X Pipe Assembly; 1 x Left Hand Axle Pipe; 1 x Right Hand Axle Pipe; 1 x LH Rear Silencer (Dark Horse & Mach 1); 1 x RH Rear Silencer (Dark Horse & Mach 1); 2 x Valved Outlet Pipes inc Actuators; 1 x Rear Silencer Hanging Bracket Set; 4 x Burnt Titanium 4.5" Trims; 115 GT

Fitment

Ford Mustang 5.0 V8 Mach 1, 2021-2023. US-market model listing. Confirm your exact model, engine and options before ordering, and message us if you are not sure.

About Milltek Sport

  • T304L stainless steel, CNC mandrel bent.
  • Designed and developed in Derby, UK with a US facility in Knoxville, Tennessee, and tested at the Nürburgring.
  • Company founded in 1983.

Warranty

Milltek covers most products with a lifetime guarantee. Downpipes, hi-flow catalysts and any part with valves are covered for 2 years or 80,000 km, and electronic products for 2 years. Claims go through the authorized dealer you bought from, and cover the original purchaser only. Full terms: millteksport.com/Warranty.html

Notes

  • Fitting times are Milltek estimates for a professional installer.
Fitment
YearMakeModel
2021–2023FordMustang Mach 1

Not sure? Text us your VIN and we’ll confirm.

Shipping & returns

Shipping: Orders ship via UPS, FedEx or USPS, from our facility near Los Angeles or directly from the manufacturer. Rates for many items are weight-based and shown at checkout. If you need it by a certain date, text us before you order.

Returns: Unused items in brand-new condition and original packaging can be returned within 30 days of the invoice date, with a 25% restocking fee unless otherwise specified. In some cases we can offer a lower fee with the balance as store credit. Shipping charges aren't refundable in either direction unless approved by AutoTalent.

Not returnable: special-order or custom items, and anything that has been installed, modified or altered.

Cancellations: free if the item is out of stock or we miss the ETA you agreed to. Other cancellations carry a 5% processing fee to cover card fees we can't recover. Special-order items can't be cancelled.

Damaged in transit? Report it to the carrier and to us within 48 hours, keep all packaging, and don't send anything back without our written approval.

Reviews & questions

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