Originally Posted by
Prodigy4B
Ok then what difference will it make,I presume you have vast exp with them?
The owners I know that have had it done couldnt tell any difference.The only way you will gain something one one of these is aftermarket ecu and maf delete.
You dont need an aftermarket ECU for maf delete.
There are many owners on the M5board that all say throttle response is better in first 3 gears and that the car definately feels quicker through first 3 gears.
There are various reports of 380-390bhp going up to 414-424BHP proved by tests before and after on a RR.
Alos im more interested in the delimit fuction which will cost money anyway so why not get both done.
There is also talk of MPG going up.