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Fabspeed is the brand on this page for the McLaren 750S, 2023–present.
Nothing is bundled into a package for it yet, so the whole Fabspeed range is below to browse, where the parts are close to ready to order.
If you want something specific put together, our team is on hand and no question is too small: , or scroll on down.
Sport Catalytic Converters
HJS sport catalytic converters for the McLaren 750S, replacing the restrictive factory cats with two 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. 200-cell HJS cats, German-imported and rated to flow 91-93% of a straight pipe. Each cat is rated to support over 1200 hp, built as 5.15 inch (130mm) round units, the largest size that fits. Fabspeed steps the tubing down from a 5.25-inch inlet through 5-inch and 4-inch sections to 76mm at the tips, and wraps the assembly in heat blankets rated to 2200°F. No catalyst-triggered check engine light guaranteed. Fits all 750S vehicles from the 2024 model year.
More for your 750S
Frequently asked
Which cars does the Sport Catalytic Converters fit?
Fits your McLaren 750S. Fabspeed lists this piece for: all McLaren 750S 2024+ Model Year; McLaren 750S. 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.
Will this trigger a check engine light?
No, Fabspeed guarantees no catalyst-generated check engine light with these HJS sport cats fitted.
How much flow do the cats offer compared to a straight pipe?
Fabspeed rates them at 91-93% of the flow of a straight pipe.
How much power can the cats handle?
Each cat is rated to support over 1200 hp.
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.