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Sport Cat Downpipes
Sport cat downpipes for the Mercedes-AMG GT, GTS and GTR, replacing the restrictive factory 800-cell catalytic converters with HJS Germany tri-metallic 200-cell cats. Laser-scanned and CAD-designed for a perfect factory fit, they're built from 14-16 gauge mandrel-bent T304L stainless steel and added 10whp and 14 Nm of torque on Fabspeed's dyno. Expect a noticeably fuller, drone-free exhaust note with a stronger pop and burble on downshifts, and no catalyst-triggered check engine light on US cars. Simple bolt-on installation, no cutting or welding. Fits M178 AMG GT, GTS and GTR vehicles worldwide from 2015 to 2021, excluding the Black Series.
Frequently asked
Which cars does the Sport Cat Downpipes fit?
Fits your Mercedes-AMG GT (C190, 2015+). Fabspeed lists this piece for: all Mercedes Benz M178 AMG GT/GTS/GTR (2015-2021) vehicles worldwide (Not Black Edition). 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 much power does it add?
Fabspeed's dyno testing showed gains of 10whp and 14 Nm of torque.
Does this fit the Black Series?
No, this version excludes the Black Series; Fabspeed offers a dedicated downpipe for that model.
Does it cause any drone?
No, Fabspeed states the exhaust stays completely drone-free while adding a fuller, more throaty note with pop and burble on downshifts.
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.
