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Use it just like any cleaner but no rinse should be done. Spray it into a rag, rub (shoe shine style works well) the tips and the main body if you like. I try to keep the WD-40 on the rag and exhaust not on the car. I doubt it is corrosive or damaging in any way but no need to get in on waxed body parts. Try to keep any other greasy or oily things from touching the exhaust including your finger prints. The heat can sort of imprint those into the exhaust.
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E92 M3 | Space Gray on Fox Red | M-DCT | CF Roof | RAC RG63 Wheels | Brembo 380mm BBK |
| Vorsteiner Ti Exhaust | Matte Black Grilles/Side Gills/Rear Emblem/Mirrors |
| Alekshop Back up Camera | GP Thunders | BMW Aluminum Pedals | Elite Angels |
| XPEL Full Front Wrap | Hardwired V1 | Interior Xenon Light Kit | |