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Discussion Starter · #1 ·
There is a fuel pressure regulator on the injector bank between the two rows of cylinders on a 2,5 V6. It looks like a round little device on the lower left side where the fuel line enters.

The middle of this regulator is dented in. Some people say you can dent this in some more to boost the file line pressure so that it pushes more through the injectors. Is this true, and is there a downside to this ??

Secondly, can a clogged petrol filter make a preformance difference ??
 
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