Exhausts

Questions to MIVV exhausts

1) Changes in the exhaust

1a)

2a) Once the exhaust has been bought, do I have to make a new mapping of the control unit or changes in the motorcycle?

- MIVV systems are specifically designed to operate at their best without any change. All data we issue are obtained in this configuration, if not otherwise indicated. If an additional control unit with the mapping concerned is used or an after market filter is installed, the power delivery could be improved as well as the general performance of your motorcycle.

2b) May I buy "after-market" control units at your company?

- MIVV does not produce nor market "after-market" control units because it is specialised in the production of exhaust systems. Anyway, MIVV has developed a technical partnership with Dynojet Europe, a market leader in the production of control units. Under this co-operation, Dynojet develops mappings for Power Commander control units, specifically designed for MIVV exhaust systems. Once developed, mappings can be downloaded from your site at the following link: http://www.mivv.it

2c) How much increase in power can I expect from a MIVV exhaust?

- MIVV exhaust are subject to bench test before being marketed. It is essential to underline that these tests are carried out only on production motorcycles where the original system only is replaced with a MIVV one. Generally speaking, all results of bench tests take shape in an increase in torque and power where the value depends both on the motorcycle which is tested each time and on the special conditions in the lab(atmospheric pressure, humidity, air temperature, etc.). These results are published on our website in the form of graphics (dynochart) where torque and power curves of MIVV exhausts are compared with those of original exhaust (stock).

2d) My motorcycle is equipped with an EXUP valve. What could happen if I assemble a muffler of yours?

- According to the motorcycle, in some cases the EXUP valve must be removed. If this is the case, there is not any problem of delivery and power. In some motorcycles, where the control units sends out an alarm signal, a kit specifically designed for turning off the alarm is supplied.

2e) My motorcycle is equipped with a lambda probe branch pipe. What will happen if I assemble a muffler of yours?

- In some cases, according to the motorcycle, if the original muffler is removed also the original branch pipe, where the lambda probe is located, should be removed. If this is the case, our systems are always designed with a branch pipe where it is possible to reassemble the probe on.

2f) I'd like to give a more aggressive and captivating sound? Which MIVV exhaust should I choose?

- All MIVV exhaust are specifically designed to provide the motorcycle with a more aggressive and captivating roar, always in conformity with the limits established by the law. So, the type of model can be chosen from an aesthetic point of view.

3) Type-approval

3a) Are MIVV systems equipped with a removable db-killer?

- All road type-approved MIVV systems are equipped with a removable db-killer. Some quad systems, included in the STRONGER line, are not equipped with db-killer because its removal would cause loss to the performance.

3b) Is the registration of changes required on the registration document in order the type-approval be effective?

- No. The type-approval number only, stamped on the muffler, is required to attest the type-approval of the muffler. Furthermore, MIVV delivers with the kit a relevant certificate to produce in case of check.

4) Maintenance

4a) How can I clean MIVV exhaust system?

- First, before cleaning the exhaust, always let it be cool to the touch. For cleaning, use a soft cloth or a sponge with lukewarm water and a non-abrasive cleaning product. For instance, car shampoo acts properly. Stainless steel and titanium surface can be cleaned regularly with a penetrating oil spray. A light buffed layer of this spray will make maintenance easy. Carbon filter can be cleaned with a soft clean cloth. Do not use a high-pressure washing plant or a steam cleaning plant to clean the exhaust surface.

4b) When do I have to replace the packing material of MIVV exhaust?

- Through long term and/or high performance use, the packing material of your exhaust can degrade over time. Your MIVV Dealer can advise you on this repacking procedure. Possible symptoms are an increasing sound level and exterior discolouring. When this occurs we recommend that the exhaust muffler be repacked immediately to avoid it degrades further. Possible discolouring of coating due to degraded packing is not included in the terms of our warranty