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Straight answers on downpipes, intakes, turbos, cooling and fitment, written for Australian cars. Pick a topic or your engine.
BMW S58 First Mods: Intake, Downpipes and Charge Pipes (G80 M3, G82 M4, G87 M2)
The first three mods for the S58 in the G80 M3, G82 M4 and G87 M2: catless downpipes, aluminium charge pipes and an intake,…
BMW S55 First Mods: Intake, Downpipes and a Top-Mount Intercooler
The S55 in the F80 M3, F82 and F83 M4 and F87 M2 Competition is the best-supported M engine BMW has made, and the…
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…
Does a Downpipe Void Your BMW Warranty in Australia?
A clear look at how BMW warranties interact with aftermarket downpipes under Australian Consumer Law — what's actually voided, what isn't, and how to…
B48 Downpipe Upgrade — Is It Worth It on the BMW 1 and 2 Series?
Understanding the B48 platform, what a downpipe upgrade actually does, the gains you can expect, and the trade-offs to weigh before committing.
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…
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…
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 —…
What an Upgraded Downpipe Does.
A downpipe is the first piece of exhaust after the turbocharger. On a turbo BMW it is also the most restrictive piece, because the…
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Parts these guides coverLive prices and stock
B58 Catless Downpipe$550 · In stock
B48 Catless Downpipe$550 · In stock
S55 Catless Downpipes$800 · Ships in 21–35 days
S58 Catless Downpipes$900 · In stock
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