Chevrolet Silverado 4.8 V8 285hp

Stage 1 chip tuning

Petrol NA · 1999 - 2007 · Ac Delco E38 · LR4

Stage 1 Results

Stock (hp)
285
Stage 1 (hp)
308
Gain (hp)
+23 (8%)
Torque
400 → 425 Nm +25

* Values are approximate. Contact us for a precise calculation.

Technical Information

Fuel typePetrol NA
Tuning levelStage 1
MethodOBD2
Engine codeLR4
ECUAc Delco E38
Generation1999 - 2007

About the remap

Stage 1 optimization for the Chevrolet Silverado 4.8 V8 285hp increases power from 285 to 308 hp (+23 hp, +8%). Naturally aspirated petrol engines have limited scope for power gains, but optimizing ignition and fueling maps delivers a smoother power delivery, more responsive throttle, and a noticeably more pleasant driving experience.

The remap is performed on the Ac Delco E38 ECU (engine code LR4) via the OBD2 diagnostic port – no ECU removal required. Results are verified with a dynamometer measurement.

Every vehicle undergoes full diagnostics before and after the remap. We keep a backup of the original ECU calibration and guarantee the option to revert to stock settings at any time. JVK PRO is a professional chip tuning service in Riga with 16 years of experience.

FAQ

How much does Stage 1 chip tuning cost in Riga?+

Stage 1 chip tuning at JVK PRO in Riga costs from €200 including VAT; with dyno tuning and measurements – from €350. We confirm the exact price for your engine before starting.

Is Stage 1 safe for the engine?+

Yes. Stage 1 is an optimization within factory safety margins. The remap is done via the OBD2 diagnostic port without opening the ECU. Results are verified on our dynamometer.

How long does it take?+

Usually 2 to 4 hours, including diagnostics, remapping, and a dyno verification run.

Can the original software be restored?+

Yes, we keep a backup of your original ECU file. Reverting to stock is possible at any time.

Book Stage 1

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Your vehicle
Chevrolet Silverado 4.8 V8 285hp
285 hp→308 hp+23 (8%)

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