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Everything on this page is Fabspeed, matched to the BMW M3 (E46), 2000–2006.
The full Fabspeed range is laid out below to browse, with the parts close to ready to order.
Whenever you are ready, , or scroll on down, and if you want something specific built, our people are on hand and no question is too small.
Sport Catalytic Converters
Fabspeed's Sport Catalytic Converters replace the restrictive factory cats on the E46 M3 with high-performance 200-cell HJS A catalytic converter coating using three precious metals for durability and flow, rather than the cheaper single or dual-metal coatings used in lower grade cats. cats, for better throttle response and a mild but noticeable increase in exhaust volume with a slightly sharper tone. Built from Bent over an internal mandrel so the tube keeps a constant diameter through the bend, unlike crush-bending. T304L stainless steel, they save weight over the restrictive factory cats and won't trigger a check engine light. DIY bolt-on installation, no cutting or welding required. Rennen Motorsport or an authorised dealer can handle the fit too, for owners who'd rather leave it to a professional.
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Frequently asked
Does the Sport Catalytic Converters fit my M3?
This listing is specific to the BMW M3 (E46). Exact fitment for your year, trim and options is confirmed on your free consult before anything is ordered.
What does the price include?
The delivered price includes the part from Fabspeed USA, freight to Australia, import costs and GST. Enter your postcode to refine delivery; the final figure is confirmed on consult.
How long until it arrives?
Every Fabspeed part is made in-house at Fabspeed USA with about a one-week production lead time, then allow another 3-4 days for delivery to Australia via UPS. That freight is already included in the price.
How does this change the exhaust note?
Expect a mild but noticeable increase in volume with a slightly sharper tone than stock.
Will it trigger a check engine light?
No, Fabspeed optimizes these for no catalyst-generated check engine light.
Is this a straightforward install?
Yes, it's a DIY bolt-on installation with no cutting or welding required. Either way works: fit it yourself, or have Rennen Motorsport or an authorised dealer do it for you.
Who installs it?
Rennen Motorsport in Adelaide, or an authorised dealer near you. Fitting it yourself may also be an option depending on the part, so raise it on your consult; professional installation is quoted separately.
Is it covered by warranty?
Fabspeed products carry the manufacturer's warranty, supported locally through Rennen Plus as the Australian principal. See our returns policy.
Can I just buy this outright, or do I need to talk to someone first?
Every enquiry, whether it's one part or a full build, starts with a free consult. We confirm the exact spec for your car before anything is quoted or ordered.