Quote:
Originally Posted by nozydog
are you saying you don't think there is a reason? The first post on this thread suggests some possible reasons!
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There is always a reason....having the flap closed will increase exhaust back pressure and therefore torque at low revs, as the revs rise the engine gets past the low to mid high torgue range and then needs extra exhaust flow to produce maximum power hence the flap opens on hard acceleration creating extra flow.
This is all about tuning the exhaust for best all round performance. Disabling it will also affect the cars fuel consumption ie. it will get worse as the engine is not running efficently as intended. It may also take away some of the smoothness in start up and normal acceleration.
Just my two pennys worth.
CT