Valve Controller
Jul 1, 2026
Why Your BMW Exhaust Valves Never Fully Open – And What You Can Do About It
A simple BMW exhaust valve controller can completely change how your car sounds. We take a closer look at why the factory valves don’t always stay fully open, how the Competition+ Exhaust Valve Control Module gives you direct control, and the features developed specifically around what BMW owners actually want from this type of upgrade.
Extremely happy and love this place. Great service from Eric. Bought and installed akrapovic exhaust system from this place. Also purchased and installed the M performance bonnet. 100% coming back for more service from this place.
Timothy Sung
Google Review
Seriously great service and people. Honest and fair. Would happily recommend anyone to them.
Amir Pali
Facebook Review
Great blokes down there, Eric is great for those chinese speaking customers looking for either some general quality servicing or even higher end modifications. Good team of humble and honest people, will definitely be back!
Andy Liu
Facebook Review
First time at Southern BM today and it won't be my last. Efficient and quality service as I'd expected at a much more reasonable price than a BMW Dealer. The only downside, you'll drop your car off and will end up drooling over the m3s and m4s out front!
Bobby Turner
Google Review
Had the rod bearings on my E92 M3 replaced by SouthernBM, very happy with service and price, highly recommended. Many thanks!
Steve Litsas
Google Review
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Stock Availability
| In Stock | Items marked GREEN or 'In Stock' are currently in stock at SouthernBM. Most orders are shipped within 1-2 business days. ‘Click & Collect’ orders are usually ready within 1-2 hours during normal trading hours. |
| Available to Order | Items marked YELLOW or ‘Available To Order’ are not currently in stock at SouthernBM, and need to be ordered in from the supplier. Please note the expected delivery time before placing an order. |
| No Longer Available | Items marked RED or ‘No Longer Available’ have been discontinued and are no longer available to be ordered. Please contact us for an alternative. |
All orders are dispatched from our Melbourne warehouse. Most orders are delivered within 1-3 business days Australia-wide after dispatch. The expected delivery time on all 'Available To Order' items is only an estimate and wait times may vary from those provided. Please contact us if you have any questions.
All items listed on our website are not available for in store pick up without prior purchase. Please use the ‘Click & Collect’ option at checkout and we will let you know as soon as your order is ready.
All items listed on our website are not available for in store pick up without prior purchase. Please use the ‘Click & Collect’ option at checkout and we will let you know as soon as your order is ready.
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