Skip to product information
1 of 3

Nforcd

Remus Non-Resonated Rear Silencer L/R Exhaust with Twin 142x72mm Tailpipes for Seat Leon Cupra 2.0 TSI 5F 2017+ (221 kW, Cupra 300), 70mm System, Stainless Steel, EEC Homologated, No GPF

Remus Non-Resonated Rear Silencer L/R Exhaust with Twin 142x72mm Tailpipes for Seat Leon Cupra 2.0 TSI 5F 2017+ (221 kW, Cupra 300), 70mm System, Stainless Steel, EEC Homologated, No GPF

Regular price £613.99
Regular price Sale price £613.99
Sale Sold out
Shipping calculated at checkout.

Performance rear section with twin oval outlets for Seat Leon Cupra 300 5F 2.0 TSI

Transform your hot hatch with a straight-through rear box that unleashes a sharper, more purposeful soundtrack and a noticeable improvement in engine response. This Austrian-built stainless rear section features dual left and right exits with 142 x 72 mm oval chrome tips, giving your Leon Cupra 5F a clean motorsport look and a deeper, crisper tone on throttle. ECE approved for road use and crafted from high grade stainless with a shot blasted finish, it is the premium choice for Cupra owners who want real quality, sound and longevity.

We run this upgrade on our own cars and our customers love the fit, finish and sound character. Expect a more aggressive note under load, a refined burble at idle and reduced back pressure thanks to the free-flowing design and 70 mm bore.

Why enthusiasts choose this rear box

  • Straight-through rear muffler for an assertive, motorsport-inspired tone
  • 70 mm bore reduces restriction for sharper throttle response
  • Twin oval outlets 142 x 72 mm, angled and chromed for an OEM plus look
  • Precision fitment to factory mounting points on the 5F platform
  • Lightweight stainless construction with durable shot blasted surface
  • Handmade in Austria with ECE homologation for road legality

Compatibility

  • Vehicle: SEAT Leon Cupra 300 5F, 3 door and 5 door
  • Engine: 2.0 TSI, engine code CJXC
  • Power output: 221 kW
  • Model years: 2017 onwards
  • Configuration: rear section, dual exit left and right
  • Only for vehicles without GPF OPF particulate filter

Technical details

  • Main pipe diameter: 70 mm
  • Outlet style: twin oval tailpipes, 142 x 72 mm, angled, chromed
  • Material: stainless steel, shot blasted

Real-world results

Fitted to multiple customer cars and our own demo vehicles, this axle-back delivers the Cupra soundtrack enthusiasts look for without the drone you associate with poor quality systems. The install is straightforward, the tips sit perfectly in the valance and the tone complements both stock and lightly tuned setups.

Fitting and support

Professional installation available at MJ Modifications in Warwickshire. Request a fitting quote: info@mjmodifications.co.uk

Important notes

  • For cars without a petrol particulate filter only
  • Please check your engine code and model year before ordering

Common search terms to help you find this upgrade

Seat Leon Cupra 300 exhaust upgrade, Cupra 5F rear box, Cupra 300 backbox, Leon Cupra axle-back system, Cupra 2.0 TSI performance muffler, twin oval tips 142 x 72 mm, 70 mm bore exhaust, stainless performance rear section, ECE approved sports exhaust, Leon Cupra 5F CJXC exhaust, Cupra 300 twin exit chrome tips, SEAT Leon 5F sports back box, Austrian made performance exhaust, Cupra 300 loud exhaust, Leon Cupra rear muffler upgrade.

View full details