£425.00 – £525.00
The Dtune CP4 HPFP Upgrade is the ultimate performance solution for diesel engines equipped with Bosch CP4 fuel pumps. Designed for serious tuning, this camshaft upgrade increases the lift and duration of the pump’s rotating assembly—resulting in higher fuel rail pressure and enhanced stability under high boost conditions.
Whether you’re building a track beast or a high-powered daily, the Dtune CP4 HPFP Upgrade is tested and proven in extreme conditions to deliver up to 700hp of diesel output. It’s engineered for enthusiasts demanding more power, consistency, and reliability from their fuel system.
By improving pressure delivery and fuel system responsiveness, this upgrade supports aggressive tuning without sacrificing safety or efficiency—making it a key component in your diesel performance build.
The Dtune HPFP Camshaft Upgrade is designed specifically for diesel vehicles equipped with Bosch CP4 high-pressure fuel pumps:
BMW N47 / B47 engines with CP4.1 – Supports performance builds up to 450hp
BMW N57 / B57 engines with CP4.2 – Capable of fueling up to 700hp
This makes it an ideal upgrade for tuned BMW diesel engines requiring stable, high-pressure fuel delivery under demanding conditions.
⚠️ This upgrade requires piston modifications. We strongly recommend professional installation.
Want us to take care of the fitting? Just select the “Fitting Service” option and send in your fuel pump. Our expert team will handle the rest.
Once your order is placed, production begins. The process typically takes two weeks, during which each unit is carefully tested to meet our quality standards before shipping.
For both your protection and ours, all items are security marked before dispatch.
Most items are listed with a fixed postage rate for both UK and international delivery. If no shipping charge appears at checkout, the system will default to “local pickup.” In such cases, please contact us for a shipping quote before completing your purchase.
We routinely follow up via email when a local pickup option is selected—just to confirm whether collection is intended or if shipping is required. This helps prevent delays and ensures you receive your item promptly. If we do not receive a response within 7 days of our email, your order will be cancelled and refunded.
Postage is charged per item by default, but we’re happy to offer combined shipping where possible. If you’re purchasing multiple items, please get in touch before completing your order so we can provide an accurate combined postage quote.
We accept returns within 30 days of purchase. If the item is damaged or faulty, we will issue a full refund. However, unless the item is damaged or faulty, the original postal charge is non-refundable, and customers are responsible for return shipping costs.
In certain circumstances, we may decline a return, such as in cases of misuse, wear, or damage not caused during transit.
If your item arrives damaged, please take clear photos of the item, the damage, the box, the interior packaging, and the label. Retain the original packaging and contact us as soon as possible so we can assist you. All refunds will be processed upon the return of the item. If further damage occurs during return shipping, we reserve the right to deduct from or refuse the refund.
To avoid any issues, please ensure the item is securely packaged when returning it.
If you’re unsure about compatibility with your vehicle, feel free to reach out to us at: [email protected] before placing your order. We’re happy to help!
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