does an exhaust mod need to be engineered?

[Ross-b]

Morning everyone

just wanted to know if technically an exhaust modification needs to be engineered

im a p plater in NSW and was just doing some light reading and

Prohibited vehicles are those with:
* Eight or more cylinders (except diesel).
* A turbocharged engine (except diesel).
* A supercharged engine (except diesel).
* Engine performance modifications that require an engineers' certificate. * Certain high performance six cylinder engine vehicles or other vehicles as described in the publication Novice Drivers - High Performance Vehicle Restrictions.

so on my bf xt if i were to do extractors and catback would that need to be engineered or would it be p plate legal?

further reading reveals this

Examples of minor (owner certified) modifications are:
Engine changes where the capacity increase is less than 15% above the maximum size engine available for the vehicle (providing no major structural modifications are necessary and where noise and/or exhaust emission ADRs apply, all standard equipment such as carburettors, exhaust systems, exhaust gas recirculating valves, oxygen sensors and catalytic convertors relating to noise and emission control are retained and operate correctly).

would this mean as long as the MIL dosnt get triggered on the BF that it wouldn't need to be engineered?

any feedback welcome

just looking into whether its worth getting a nice set of 4495s

to those of you wondering y my light reading included going onto the rtas website its becaus ei recently found out an old mate has lost his licence for 6 months with a 2000 dollar fine for driving turbo on his ps (he couldnt have been more stupid really driving an r33 with the bigggest FMIC ever created)


http://www.rta.nsw.gov.au/registrati...s_nov_2007.pdf