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B58 guides

Straight answers on downpipes, intakes, turbos, cooling and fitment, written for Australian cars. Pick a topic or your engine.

Intakes & turbosEvery engine BMW Upgrade Turbos: B48, B58, N54, N55, S55 and S58 Explained An upgrade turbo is the point where a BMW build stops being a bolt-on car and becomes a proper power build. This guide covers… 3 Sep 2026 · 7 min readRead → DownpipesB58 BMW B58 Catless Downpipe — Gen 1 vs Gen 2, Fitment & Power Gains The B58 catless downpipe is the first hard-part most B58 owners buy, and for good reason: it removes the single biggest restriction in the… 12 Aug 2026 · 5 min readRead → CoolingB58 BMW Intercooler Upgrade: Beating Heat Soak in an Australian Summer If you drive a turbocharged BMW in Australia, heat is the quiet tax on your power. On a 35°C day in stop-start traffic, or… 11 Aug 2026 · 7 min readRead → Intakes & turbosB58S55S58 Do BMW Cold Air Intakes Actually Add Power? (B58 & M-Car Guide) Do BMW cold air intakes actually add power? The honest answer for B58, B48 and S55/S58 M cars — how much power to expect,… 18 Jul 2026 · 7 min readRead → First mods & buildsB58 340i Mods: Why the B58 Is the Best Value Performance BMW (and the First 3 to Do) The B58 340i is the value sweet spot of modern BMW performance. Here are the first 3 340i mods to do, in order, and… 23 Jun 2026 · 7 min readRead → DownpipesB58 Catless vs Catted Downpipe: Which is Right for Your B58? It's one of the most common questions when shopping for a downpipe upgrade. Catless or catted? Both improve performance over the factory unit, but… 30 Apr 2026 · 5 min readRead → First mods & buildsB58 Best Performance Upgrades for the BMW G20 M340i in Australia The G20 M340i is one of the best performance sedans on the market. From the factory it makes 285kw, sounds good, and pulls hard.… 23 Apr 2026 · 5 min readRead → DownpipesB58 How Much Power Does a B58 Downpipe Actually Add? It's the first question every B58 owner asks before pulling the trigger on a downpipe. And the honest answer is — it depends. But… 17 Apr 2026 · 5 min readRead → DownpipesB58 B58 Downpipe Buyer’s Guide: What to Look for in Australia If you're running a B58-powered BMW — whether that's an F30 340i, G20 M340i, G22 M440i, G42 M240i or a Toyota GR Supra —… 10 Apr 2026 · 5 min readRead →
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