911 GT3 / GT3 RS

Name: Fabspeed Porsche 997 GT3 / GT3 RS Side Muffler Bypass Pipes
Brand: Fabspeed
SKU: FS.POR.997GT3.SMBX

997.1GT3 / RS2006–2009

Side Muffler Bypass Pipes

Choose Valve Configuration

Pricing

Priced on consult

inc GST & import · fitment confirmed before dispatch

Side muffler bypass pipes for the Porsche 997 GT3 / GT3 RS (2006-2009), replacing the heavy, restrictive factory side mufflers for better exhaust flow and a replicated, aggressive Cup-car sound with no resonance or drone. On the dyno they added 9whp and saved 20 kg from the rear of the car, while staying 100% emissions and CARB compliant for street legality. Built from 14-16 gauge T304 stainless steel, they're available with or without Helical aerospace-grade exhaust valves, the same supplier used by McLaren, Ferrari, Lamborghini, and Aston Martin on their own cars. Simple bolt-on installation.

SKU FS.POR.997GT3.SMBXPorsche 911 GT3 / GT3 RS (997.1) · 2006–2009

Frequently asked

Which cars does the Side Muffler Bypass Pipes fit?

Fits your Porsche 997 GT3. Fabspeed lists this piece for: Porsche 997 GT3; Porsche 997 GT3 RS. 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.

Is this street legal?

Yes, Fabspeed states it's 100% emissions and CARB compliant, so it's street legal.

How much power and weight does it change?

Dyno testing showed a gain of 9whp, with 44 lbs (about 20 kg) saved from the rear of the car.

What's the difference between valved and non-valved?

The valved option uses Helical aerospace-grade exhaust valves to control gas flow and back-pressure; non-valved skips that hardware for a simpler, fixed-flow design.

Which option should I choose?

Choose Valved if you want Helical aerospace-grade exhaust valves controlling gas flow and back-pressure, the same supplier used by McLaren, Ferrari, Lamborghini, and Aston Martin. Choose Non-Valved for a simpler, fixed-flow design without the valve hardware.

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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