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Sound Symposer Delete Kit
Fabspeed's Sound Symposer Delete Kit addresses the factory device on the 718 GT4, GTS and Spyder (2020+) that pipes engine noise into the cabin, fine with the quiet stock exhaust, but a source of extra An unwanted droning resonance at certain highway rpm, where exhaust pulses match the cabin's natural frequency. and resonance once a louder aftermarket exhaust is fitted. The kit is two 3D-printed plugs with O-rings that seal off the factory symposer pipe, laser scanned and CAD designed for perfect OEM fitment, and fully reversible back to stock. Made from UV-resistant, high-temperature Nylon PA-12, it's a simple bolt-on job with no cutting or welding.
Frequently asked
Which cars does the Sound Symposer Delete Kit fit?
Fits your 718 Cayman GTS 4.0. Fabspeed lists this piece for: all 718 Cayman / Boxster GT4 / GTS / Spyder Models 2020+. 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.
Why would I need this if I already have a quiet stock exhaust?
The sound symposer isn't an issue with the stock exhaust, but pairing a louder aftermarket exhaust with it can increase in-cabin drone and resonance, which this kit addresses.
Is this reversible?
Yes, it's a totally reversible installation back to stock.
What are the plugs made from?
UV-resistant, high-temperature Nylon PA-12, 3D printed on HP industrial-grade printers.
Does it require any cutting?
No, it's a simple bolt-on installation with no cutting or welding.
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.
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