Considering an ECU remap for your Cadillac XLR 4.6 V8 326hp? A Stage 1 remap can take this 2006 - 2009 petrol engine from 326 BHP to 346 BHP and from 423 Nm to 450 Nm of torque (naturally aspirated). This engine scores 3.5/10 for remap suitability. Get a free personalised quote from a trusted remap professional and find out exactly what your Cadillac XLR can achieve.
The Cadillac XLR 4.6 V8 326hp is a 4.6L naturally aspirated petrol engine producing 326 BHP and 423 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 346 BHP and 450 Nm — a gain of around 20 BHP (6%) and 27 Nm (6%).
This engine has limited remap suitability, though the available headroom is limited, so gains are modest compared to higher-output variants. The tuning headroom is classified as limited, based on the percentage gain available from the factory output.
Considerations: Naturally aspirated engine: gains are usually limited; results vary widely.. High tuned torque: check transmission torque capacity and service history.
All figures shown are typical estimates based on aggregated Stage 1 data for this engine variant. Actual results depend on vehicle condition, mileage, and the chosen tuning method. We recommend discussing your specific vehicle with a qualified remap professional.
| Engine | BHP | Gain | Torque | Gain | Score |
|---|---|---|---|---|---|
| 4.4 Supercharged V8 443hp | 443 → 480 | +37 | 561 → 600 |
| +39 |
| Moderate (5/10) |
Get a personalised remap quote for your Cadillac XLR. We'll connect you with a trusted professional in your area.
All figures shown are typical estimates based on aggregated Stage 1 data for this engine variant. Actual results depend on vehicle condition, mileage, and the chosen tuning method.
We recommend discussing your specific vehicle with a qualified remap professional before proceeding.
