Real Performance Mapping

Performance Exhaust Solutions

From full exhaust system replacements to back box deletes, we offer expertly fitted solutions designed to enhance sound, flow and performance. All fitted in-house at Unit 28, Broadbridge Heath.

OEM & Aftermarket Options Valved Exhaust Fitting Software Deletes (e.g. O2 Sensors) 0% Payment Assist
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What we do on an exhaust build

We supply and fit performance exhaust parts — or fit your own — with expert installation and support. From full systems to sensor deletes, everything’s handled in-house at Unit 28.

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Full Exhaust Systems

  • OEM+ and aftermarket systems: cleanly fitted, with OE-style hardware.
  • Customer-supplied parts welcome: bring your own system, we’ll fit it properly.
  • Fitment checks included: alignment, clearance, and clamp security.

you feel sharper sound, improved flow, and confidence in the install.

Resonator & Box Deletes

  • Res deletes: more tone, less drone — a clean sound mod.
  • Back box deletes: louder note and weight savings for weekend/track cars.
  • All bolt-on: clamps, gaskets and mounts — no welding required.

you feel more presence without full system cost.

Decats & Sports Cats

  • Sports cats: high-flow and road legal — performance with compliance.
  • Track-only decats: with correct sensor placement and sealing.
  • No CELs: paired with O2 sensor delete software when required.

you feel more power, less restriction, and no warning lights.

Valved Exhaust Fitting

  • OEM and aftermarket valves: integrated or standalone remote systems.
  • Wiring done properly: tidy routing, fused connections, tested on install.
  • Control your volume: quiet when needed, loud on demand.

you feel flexibility without compromise.

Software Deletes

  • O2 sensor delete: avoids warning lights after decat installs.
  • Other deletes: EVAP and secondary air system where applicable.
  • Mapped by pros: VIEZU-developed calibrations, reversible and MOT-considered.

you feel smooth running, no errors, no nonsense.

Fitting & Aftercare

  • No welding required: all parts fitted using OEM-style mounts and clamps.
  • Sound & MOT advice: guidance on volume limits and legal specs.
  • Aftercare included: WhatsApp follow-up and free post-fit inspection.

you feel supported before and after the job’s done.

Exhaust Service Pricing

All prices are from-estimates based on our standard labour rate of £85/hour. Final cost may vary depending on vehicle and hardware.

Resonator / Back Box Deletes

  • Fitting time: from 1.5 hours
  • Estimated cost: from £127.50

Software Deletes

  • Estimated cost: from £220 (method-dependent)
  • Add main ECU map: from £60

Full Exhaust System Fitting

  • Fitting time: from 2 hours
  • Estimated cost: from £170

Valved Exhaust Fitting

  • Fitting time: from 2.5 hours
  • Estimated cost: from £212.50

Sports Cat / Decat Fitting

  • Fitting time: from 1.5 hours
  • Estimated cost: from £127.50

Standard Labour Rate

  • £85/hour including VAT
  • Includes inspection, fitting, and post-checks

Contact Us Today

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CHECK OUT OUR INSTAGRAM

BMW 5 Series (G30) – M5 Style Transformation Full body kit install completed, including a front splitter, side skirts, and rear spoiler — all aligned, secured, and finished for an OEM+ look. We used a mix of high-strength adhesive bonding and precision-fit fixings to make sure everything sits perfectly and holds strong. Another clean transformation from the RPM Sussex workshop. 💎 Premium performance styling. 🔧 Professionally installed. 🏁 Done right, first time. 📍 RPM Sussex | ECU • Styling • PerformanceIntroducing CarePlus by RPM Sussex ✨ Your car deserves more than a service — it deserves ongoing care, performance protection, and exclusive savings all year round. With CarePlus, you’ll enjoy: ⚙️ 10–20% off labour and servicing 📅 Priority booking for members 🎁 Exclusive offers and loyalty rewards 🔄 Free map reverts (OBD & bench discounts) 💰 Added resale value through a digital service history Now available from £5.99/month. Join today and experience the difference between being a customer — and being a member. 🔗 www.rpmsussex.com/careplusFord Focus 1.0 EcoBoost – Stage 1 Performance Tune This Focus came in for a safe Stage 1 calibration via OBD — all completed under full battery support with pre and post diagnostics. 📈 +30 BHP / +70 Nm 💻 Stage 1 ECU Tune – Improved mid-range torque and sharper throttle response 🧰 Stock-safe calibration for daily reliability 🔍 Fault scan completed – P0420 code linked to cat-back exhaust system, monitored Smooth, linear power delivery and a noticeable boost in drivability — the perfect upgrade for daily use.BMW 1 Series 2.0D – Blend Map ECU Tune We carried out a Stage 1 Blend calibration on this 1 Series, designed to improve both performance and fuel economy while keeping everything safe and reliable. ✅ +37 BHP / +70 NM ✅ 7–10% better fuel economy ✅ Smooth, refined torque delivery ✅ Code scan & diagnostics completed before and after ✅ All done via OBD under full battery support This map gives the perfect balance between performance and economy — ideal for daily use without stressing engine components.Volkswagen Golf GTI – Stage 1 ECU Tune The 2.0 TSI (DKTB) came in at 245 BHP / 370 Nm, and left producing a healthy 315 BHP / 440 Nm after our Stage 1 calibration. ✅ Tuned via OBD – no ECU removal ✅ Battery support maintained throughout ✅ Pre & post diagnostic scan completed ✅ Sharper throttle response, smoother boost delivery, and stronger mid-range pull Mapped safely within OEM limits using premium 99 RON fuel – this GTI now drives how it should have from factory.This one came in for a full bench-tuned Stage 1 ECU calibration alongside a clean resonator delete. We safely removed the ECU from the bay, pulled the file directly via pin connection, and applied our custom Stage 1 software. 📈 Gains: +32 BHP / +40 Nm 💻 ECU Type: Bosch MEVD17 (bench tuned) 🧠 Tuning method: Bench read/write 🔊 Exhaust: Resonator delete — cleaner tone, improved flow Results? Sharper throttle response, stronger mid-range torque, and a smoother pull through the gears. Perfect balance between performance and refinement.