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Makes the car more responsive but doesn't seem any more powerful, does not increase fuel economy ran full tank with it on and off for a week both sensible driving and with box was 5 mpg worse. Taken off now and very little difference. It's not comparable to remap on my old car. Well made though and cheap.
Verified purchase: Yes | Condition: New
Certainly makes a difference to performance etc for a reasonable price....good quality goods...easy installation
Verified purchase: Yes | Condition: New
Does what it says improves performance and economy and good value for money
Verified purchase: Yes | Condition: New