A45 tuning
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litchfield logo

Mercedes A45, CLA45, GLA45 AMG Tuning

The Mercedes-AMG A45 has received a number of very positive reviews since its release, but one of the few criticisms seems to be that it lacks some of the ‘fun’ of its rivals. We can change that.

We offer a range of proven performance upgrades that will transform the power delivery and thrill of driving your A45, CLA45 and GLA45. Although available separately, we combined the most popular options into our simple Stage upgrade path. From our popular Stage 1 plug and play box to producing the UK's fastest A45 with Stage 3 we have the all the options covered.

Stage 1 - 400 bhp

Stage 1 consists of a simple ECU remap, which lifts power and torque considerably.

Customers can expect a power increase from the standard 360 bhp to 400-410 bhp and torque increases to 400-410 lbft.

Compatible on both the original and late A45 models, GLA45 and CLA45.

A45 Powergraph

Stage 1

£500.00 exc VAT

£600.00 inc VAT

Stage 2 - 415 bhp

Our Stage 2 upgrade consists of an ECU remap and a large bore intake pipe. This removes the restriction in the standard air box and replaces it with a large intake cone and high flow filter. Price includes the ECU remap, intake kit and installation (around 1 hour).

Power increases to 410-420 bhp with 410-415 lbft torque.

Compatible on both the original and late A45 models, GLA45 and CLA45.

A45 Powergraph

Stage 2

£760.00 exc VAT

£912.00 inc VAT

Stage 3 - 435 bhp - MOTORSPORT USE ONLY

For the Stage 3 upgrade we fit a significantly larger stainless steel downpipe with a link pipe. This removes the catalytic convertor so we would only recommended this for track use. Removing the restriction of the catalytic convertor allows the turbo to spool more quickly and produce more top end power.  Installing DE-CAT pipes is for Motorsport use only as the car will not be emissions compliant for road use.

This upgrade also requires the original ECU to be fully re-calibrated to provide the very best tune and to safely use the increased flow the new exhaust provides. The price includes 3 hours for fitment. Stage 3 can also be fitted to the CLA45.

Power increases to 435-445 bhp with 430-440 lbft

A45 Powergraph

Stage 3

£2,380.00 exc VAT

£2,856.00 inc VAT

A45 AMG dyno 1
A45 AMG downpipe
A45 AMG dyno 1