had a few troubles with spikeing boost and boost levels dropping off got a new n75 off wazzzer big thanks for that cheap as chips

it is loads better but is now spiking at 21psi and holding 14 psi in 2nd then spiking 22psi holding around 18psi in all other gears but every so often it surges to 22psi then drops back to 14 psi no were near as bad as it used to be before i fitted this new n75 but still does it to a point any ideas im starting to think the map is possibly a bit sh!t as ive no history of who did it nor a recipt from the previous owner i think a stage 2 map is on the cards next week anyone reccomend anyone in the lancashire area

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