Originally Posted by Roelof

The EFRA had for 1 year the rule to use an 8mm restrictor, due many blown Picco engines the rule was scrapped after a year. The 16% rule is for 2 reasons, the anti terrorist laws making high nitro content fluids difficult to get and noise and the noise from which we have never seen any test results.

The funny thing with the EFRA is that there are no testreports at all. Not of the homologated exhausts, not of the batteries, not of the bodies etc.
With all noise restrictions the EFRA did not show us the testresults of what the change will give. Even with the 30xx exhausts the only story from the EFRA was that it does not affect engines and there could be a slight power loss. In that year the engines did become hot and some exhausts weren't even giving a good power. But over 40 30xx exhausts were homologated with in a total of about 15.000 euro is earned with the homologation.

The last compleete drawing of an EFRA exhaust was from the 2052, all later models are not listed in drawings and dimensions. How can a technical inspection see or test if it is the right exhaust?