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Birchills Automotive Exhaust Products

Birchills Trading Estate
Green Lane, Walsall
West Midlands
England, UK
WS2 8LF.

Telephone: +44 (0)1922 628379
Fax: +44 (0)1922 723054

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Birchills Automotive offer the complete turnkey package to its customer. Together with our technical partners and suppliers we offer Design, Development & manufacture complete exhaust systems, Sports Silencers and Tail Trims in many different substrates and finishes. We manufacture all products in-house at our Plant in the West Midlands UK & prepare the exhausts ready for Automotive / Motorsport homologation. We also manufactured exhausts using reactive silencing techniques; this reduces the testing and development costs.

We achieve this through:

Quality: ISO9001 2008 Accreditation. The company has been quality assessed by several OEM’s and are approved suppliers. We do work to TS16949 quality standards and document to PPAP Level 3 if required to do so. We also recognise BS14001 and work to these standards.

Design: Existing design capability. Solid Works and with our partners CATIA V5.

Development: We develop and prepare the exhaust Acoustic sound quality and decibel levels to achieve drive-by and prepare the exhaust for homologation & certification. We work closely with catalyst manufactures (Both Metal and Ceramic Substrates) to achieve the emission programme/levels our customers require.

Manufacture: In 2005 we increased our manufacturing capacity by Developing & a large range of ‘Spun Section Silencers’ which are manufactured in lengths from 200mm to 1000mm.

Spun silencers BMW M Performance Exhausts
Spun silencers BMW M Performance Exhausts

From there we proceeded to manufacture OEM performance silencers for major Blue Chip and 1st tier customers in low to medium volumes. We manufacture many different Tail Trims / Tips to OEM customer specifications and also design and make our own for the Aftermarket.

High Temperature Coatings

BMW M Performance BMW M Performance
BMW M Performance  

High Performance Coatings are extremely tough and hard warring and withstand the OEM testing and approval processes.

Light weight Manufacture

Titanium KSTI ASN Titanium KSTI ASN Titanium KSTI ASN

Titanium KSTI ASN - This material has been developed for exhausts, it 40% lighter than stainless steel. It has a high resistance to Oxidization and has a 0.2% higher yield strength in comparison to Titanium Grade 2. When tested for 10 hours at 800°C there was virtually no thickness reduction.

Tooling & fixtures

Tooling is mainly designed and manufactured in-house. Since the late sixties we have manufacture and maintained a massive range of exhaust tooling. The range consists of:

Baffles/End Plates Baffles/End Plates
  • 32mm to 500mm diameter welded Baffles/End Plates
  • Oval section 76mm x 40mm to 400mm x 200mm welded Baffles and End Plates.
  • Spun section silencers from 150mm x 100mm to 260mm x 130mm.
  • All silencers can be manufacture up to 1000mm in length.

Whilst signifcant investment has already been made, there are further plans for continued growth, investment and further development of exhaust products.


We use many different materials for our products, 304 stainless steel (polished), Titanium, Titanium coated, Carbon Fibre, Aluminised Steel, Mild Steel and others.

More Information?

If you require any further information please do not hesitate to Contact Us.