SLN Ceramic Coated Downpipes - BMW F90 M5 & F91 F92 F93 M8 Pre-LCI S63

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£749.00

Brand: SLN
SKU:: SLN_F90_DC
Condition:: New
PART:: EXHAUSTS
BRAND:: SLN
QUICKCODE:: SLN_F90_DC

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SLN Performance Ceramic Coated Primary & Secondary Downpipes for BMW F90 M5 & F91 F92 F93 M8 Pre-LCI S63 2018-2020

The SLN Performance primary and secondary downpipes for the BMW F Series M5 & M8, are a premium upgrade engineered specifically for enthusiasts and tuners seeking to maximize the 4.4L twin-turbo V8's potential by removing restrictive factory catalysts.

SLN downpipes are crafted from high-grade stainless steel and finished with a professional-grade ceramic coating

This setup dramatically reduces backpressure, delivers quicker turbo spool with reduced lag, sharper throttle response, and a deeper, more aggressive V8 exhaust note. The ceramic coating retains exhaust heat inside the pipes for optimized gas velocity and scavenging, while significantly lowering radiated heat to the engine bay—helping maintain cooler underhood temperatures, protecting nearby components, and enhancing overall engine reliability and durability.

Additional advantages include exceptional corrosion and rust resistance (ideal for long-term ownership), extended component lifespan, a sleek aesthetic that resists discoloration over time, and precise bolt-on fitment at a competitive price.

Main Benefits

Premium stainless steel construction
Completely eliminates both primary and secondary catalytic converters
Substantial reduction in exhaust backpressure
Faster turbo spool-up, minimized lag, and improved throttle sharpness
Enhanced exhaust volume and a raw, aggressive V8 sound
Ceramic coating retains heat for better exhaust gas velocity and scavenging, supporting marginal gains in efficiency and tuning headroom
Dramatically lowers underhood temperatures, reduces heat soak, and protects sensitive components (sensors, wiring, etc.)
Superior resistance to corrosion, rust, oxidation, and thermal fatigue for maximum longevity
Expands tuning potential on the S68 engine
Backed by a 1-year SLN Performance warranty plus guaranteed proper fitment
Tailored for seamless, direct-fit installation on G90 sedan and G99 Touring models

Fitment Details

Compatible with BMW F90 M5 Pre-LCI 2018-2020
Compatible with BMW F91 F92 F93 M8 Pre-LCI 2018-2020
Engine: S63 4.4-litre twin-turbo V8

The use of de-cats, sports cats are for off road/motorsport use only. Using these parts would inhibit your vehicle from passing a MOT test.

Only EC type-approved components are legal and fit for road use.

If non EC type-approved components are fitted at Performance M, the vehicle cannot be driven from our premises on the road, the vehicle will need to be recovered on a trailer to prove your intention is for off road use.

Performance M Delivery Information

BREXIT 2021 EUROPEAN TAXATION CHANGES:

For European Customers prices now displayed in cart once you enter your address will have 20% UK VAT Tax removed, however you will have to pay some form of Duties / VAT prior to delivery of your goods. If you are unsure of charges we recommend you should contact your local authorities ahead of placing your order.

Do we ship abroad ?

Yes we do, to almost anywhere in the world though remember the postage is often high when shipping anything bulky. Most bulky items we export will go by UPS so you can track the package online and could reach America within 48 hours providing its in stock !

However there are a few countries we do not ship to, some of these include: Thailand, Malaysia, Indonesia, Russia, Nigeria, Macedonia, Syria, Ukraine, Lebanon.

Why is postage on bulky items to some countries expensive compared to some other companies ?

For both yours and our safety we use well known couriers such as DPD Local and UPS for shipping, then we know exactly where it is in the world at any time and we know its going to arrive safely. Shipping small items can be cheap, but items such as bodykits are expensive to ship - we have a very small margin on the postage fees merely to cover packaging. We can now ship using standard post on some items, however using all methods you may incur import charges when you receive the goods for which we cant be responsible for.

Availability:

Not everything on our website is in stock, if you need a part desperately please contact us first to confirm availability before placing your order

How do I place an order if I live within the UK ?

You can either order here in our online shop or you can phone us or email us, using the following number/address: Phone: 0161 507 5005 email: sales@performancem.co.uk

How do I place an order if I live outside the UK ?

You can order online or by emailing us. email: sales@performancem.co.uk