The owner of a 2001 Citroen Berlingo 1.9D said that before the Surbo, he could barely get to red line (5000 rpm) on the rpm meter with aircon on in first gear. With the Surbo, he could do that even in 4th gear, and just pressing the accelerator partly. The engine became smoother too.
The feedback regarding the first Surbo was:
1. Higher top speed--he could hit 140 kph with aircon on easily, and there was more speed up there, and this was better than the before-Surbo top speed of 130 kph with aircon.
2. Consumption remained the same despite hard driving all the time.
3. No more black smoke during cold starts.
4. Less noise and vibration during cruising and acceleration.
5. Better pickup. Previously, in first gear, there was one car length between the Berlingo and a friend's Mazda 323. With the Surbo, that was cut to half a car length.
He got back a month later to put on a second Surbo for a Twin.
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10% fuel saving with mixed driving and more on highways
Faster acceleration, especially from standstill for automatic cars
Higher top speed, which means easier cruising
Higher RPM capability, rev limit possible with just 1/2 throttle!
Instant automatic gear kickdown
Safer, more confident overtaking
Better hill climbing power
Less diesel smoke, even with more speed
Reduced CO2 emissions from vehicles
Money saved, more than from fuel savings
Transferability. Use your Surbo on your next car
Lifetime warranty on both the Surbo and installation
How Surbo works
What is Surbo?
The Twin Surbo, 2 Surbos in series for even more low rpm torque
Surbo versus other engine accessories and parts
When the Surbo is most useful
Dynamometer Test Results
How Surbo increases engine compression at low rpm and prevents excessive compression at high rpm
How Surbo increases engine efficiency
How Surbo prevents harmful engine knocking
How Surbo may help your engine so it can last longer
FAQ: Frequently asked questions
How Surbo works for diesel engines
How Surbo's increased air density enhances diesel technology, and raises peak RPM
Diagram: Surbo's effect on the whole vehicle
Diagram: Surbo on petrol turbocharged engines
Diagram: Surbo on diesel engines
Diagram: Surbo on turbo diesel engines
Some vehicles recommended for Surbo
Automatic cars fitted with Surbo
Manual cars fitted with Surbo
Surbo5 for larger engines
Petrol turbo cars fitted with Surbo
Petrol CVT cars fitted with Surbo
Petrol hybrid cars fitted with Surbo
Petrol supercharged cars fitted with Surbo
Natural gas car fitted with Surbo
Diesel and turbodiesel vehicles fitted with Surbo
Motorcycles fitted with Surbo
Photos of Surbos installed in various cars
Why choose Surbo?
Surbo will pass vehicle inspections due to lower emissions
30 day money back guarantee
What happens during the Surbo installation
List of Surbo dealers by country
Buy Surbo online with installation guide, if there's no dealer near you
Join us as dealer for your area
Surbo on racing gokart
Surbo on Honda Civic (runner up in Singapore race)
Surbo wins India race
History of the Surbo company
How the Surbo came to be
Aftersales service and advice, on accessories or compatible vehicles
User guide for Surbo
Automotive engineering and other applications of Surbo