Car Pop & Bang / Crackle Map

Turn heads and make your exhaust sing with a professional Pop & Bang / Crackle Map from gdm Tuning. By adjusting ignition timing and fuelling on overrun, we programme your ECU to produce those satisfying exhaust pops, crackles, and bangs that give your car a true performance character.

Important — Please Read Before Booking

A performance exhaust system must be fitted to your vehicle in order to achieve worthwhile and audible pops and bangs. A standard factory exhaust will significantly limit the effect and may produce little to no noticeable result. It is the customer's responsibility to ensure a suitable performance exhaust is already fitted prior to booking.

Please be aware: Pop & Bang remaps place additional stress on your engine, exhaust valves, and exhaust system components. Over time, this can be detrimental to engine health and longevity. gdm Tuning strongly advises customers to consider this carefully before proceeding. This service is recommended for vehicles used primarily for track, show, or enthusiast purposes rather than daily drivers.

• ECU remapped to produce exhaust pops and crackles on overrun
• Performance exhaust must be already fitted — not included in this service
• Can be combined with a Stage 1 remap for maximum effect
• Fully reversible on request
• Compatible with most petrol vehicles — contact us to confirm suitability

Service Area

This service is currently available to customers in the following postcode areas only: NE, SR, TS, DH, DL, TW. If your postcode does not begin with one of these prefixes, we are unable to offer this service at this time.

Once your order has been placed, a member of our team will be in touch to arrange a convenient fitting appointment. Whilst every effort is made to complete your remap as soon as possible, during busy periods there may be a wait of up to 2 weeks.

Performance Gains & Expectations

Any quoted performance gains are estimated figures only and will vary from vehicle to vehicle depending on the condition, wear and tear of the engine and associated components. The remap will be carried out to achieve the best of each vehicle's individual capabilities, within safe factory parameters.

gdm Tuning cannot be held responsible for unrealistic expectations. Whilst customers may have an idea of how they would like their vehicle to perform, it is not possible to tailor a remap to an exact customer specification. Results will always reflect what the vehicle is safely and mechanically capable of delivering.

Terms & Conditions — Please Read Before Booking

Elective Service & Limitation of Liability

ECU remapping is an elective modification chosen entirely at the customer's discretion. By purchasing this service, the customer acknowledges and agrees that:

• gdm Tuning accepts no responsibility whatsoever for any damage, failure, or deterioration of the vehicle, its engine, drivetrain, exhaust system, or any associated components arising from or connected to the remapping service.
• The customer is fully aware that Pop & Bang remaps can be detrimental to engine health and accepts this risk entirely.
• The customer confirms that a performance exhaust system is already fitted to the vehicle prior to the appointment.
• The customer proceeds entirely at their own risk.

No Refund Once Service Completed

Once the ECU remap has been carried out, the full service charge becomes non-refundable, regardless of whether the customer is satisfied with the outcome. By purchasing this service, the customer acknowledges that the remap is an elective modification performed to the best of the vehicle's mechanical ability, and that dissatisfaction with the results does not constitute grounds for a refund. This is in accordance with the Consumer Contracts (Information, Cancellation and Additional Charges) Regulations 2013, which provides that the right to cancel is lost once a service has been fully performed with the customer's prior agreement.

Vehicle Condition

By completing this purchase, the customer confirms and warrants that their vehicle is in a suitable mechanical condition and has a performance exhaust fitted. If, upon inspection, the vehicle is found to have pre-existing faults or does not have a suitable exhaust fitted, gdm Tuning reserves the right to decline the service and retain a £99.00 attendance and assessment fee, with the remaining balance refunded.

Cancellation Policy

Cancellations must be made at least 24 hours before the scheduled appointment. Late cancellations or no-shows will incur a £99.00 cancellation fee, in accordance with the Consumer Contracts (Information, Cancellation and Additional Charges) Regulations 2013.

Governing Law

These terms are governed by the laws of England and Wales. These terms do not affect your statutory rights under UK consumer law.