Services

What we
build.

Five core areas. All quoted before work starts. All carried out by us — no subcontracting on workshop work.

Custom exhaust fabrication

We build mandrel-bent, fully welded systems in a mix of 304 and 316 stainless — used together for the right balance of corrosion resistance, weldability and long-term finish. Titanium and Inconel available by special quote for weight-critical or high-temperature applications. We do both fully custom builds and pre-built systems for popular platforms.

Single or twin exit, full system, resonator and silencer choice tuned for the sound you want. Common builds: full turbo-back and cat-back systems (cat retained for road use), custom downpipes, bespoke twin-exit conversions, and one-off track systems. Quoted on the car after measure-up.

Decat / sports-cat sections — off-road and motorsport use only. Removing or modifying a catalytic converter on a vehicle used on UK public roads is a criminal offence under the Road Vehicles (Construction and Use) Regulations 1986 (reg 61a), causes MOT failure and may invalidate your insurance. We will not knowingly fit a decat or sports-cat section to a vehicle used on the public road. See our full emissions policy below.

Intercooler kits & charge piping

Custom aluminium intercooler kits and full charge-pipe sets, designed and fabricated to fit. Front-mount (FMIC), side-mount and top-mount setups for turbo and supercharged cars, sized to the airflow your build actually needs.

Includes core selection, end-tank fabrication, mandrel-bent aluminium piping, silicone couplers and clamps, BOV / blow-off valve mounting and bracketry. We can also fit a customer-supplied core to a custom piping kit — your call.

Performance parts

Brakes, intakes, induction kits, manifolds, suspension and engine components from the names we trust. We don't push parts you don't need — if a stock spec is right for your build, we'll say so.

OEM & standard parts

Filters, oils, brake discs and pads, belts, bushes, sensors and the rest of the day-to-day service-and-repair list. If it's not on the shelf we order it in — usually next-day.

Mechanical repairs & servicing

General workshop work for road cars and modified builds:

You get a written quote before anything starts. Nothing extra is added without your say-so.

MOT preparation & booking

We're not a DVSA-approved testing station ourselves — but we'll prep your car to MOT standard, arrange the test at a trusted local DVSA station, and handle the logistics. Drop the keys with us; we take it from there.

The MOT test itself is conducted by an independent DVSA-approved testing station. We charge for our prep work and any remedial repairs; the MOT test fee is set by the testing station and is paid in addition.

Emissions equipment — our policy

We take this seriously and so should you. UK law makes it an offence under the Road Vehicles (Construction and Use) Regulations 1986 (reg 61a) to use a vehicle on a public road that has had emissions control equipment tampered with, removed or disabled. This includes:

Removing or disabling any of these will fail the MOT, may invalidate your insurance, and can result in a fixed penalty plus an unlimited fine on prosecution.

Our position. STR Performance Ltd will not knowingly fit, supply or remap a vehicle to remove or disable emissions equipment where the vehicle is used on the UK public road. Where you ask us to fit such a part, you will be required to confirm in writing that the vehicle is used solely for off-road / motorsport competition, is being prepared for export, or is a non-road project / display car. We may decline any job at our discretion.

For full terms see our Terms & Conditions section 7 and Service Terms section 9.

How payment works

For workshop bookings and custom builds we issue a written quote by email. Card payments are taken via secure Stripe payment links sent with your quote or invoice. Bank transfer also accepted.

See our Service Terms and Refund & Returns Policy.

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