We were able to keep all of the things that people love about our race headers:less weightmore power,great sound,quiet when you want it to beno dronelifetime structural warranty100% 30day money back guaranteeif you try it and don't like it, send it back we
We were able to keep all of the things that people love about our race headers:
We use 321SS (a superior grade of Stainless steel to the cheaper 304SS) and use a metal core spiral wound 200CPSI catalytic converter. All our products are mfg in the USA in our shop in Gig Harbor, WA.
By routing the primaries up and positioning the catalytic converter more vertical we were able to retain 99% of the primary length of the race system. This is how we are able to achieve 25whp gains on the 991.2 GT3, 30whp gains on the 991.1 GT3 and 32whp on the 991.1GT3RS. This is the most power from a catted 991.2 GT3,991.1 GT3 Exhaust, 991.1 GT3RS Exhaust or 911R Exhaust system.
The Dundon Street Headers on 991.2 GT3
477whp Peak
20-25whp gains at 8200-8500 rpm
40lbft-46lbft gains at 3000-5000 rpm
You get everything you love about the Dundon Race Headers, 321 SS construction, industry leading power, lifetime structural warranty, and 100% money back guarantee, if you try it and don’t like it, send it back we’ll give you your money back!
To that end, see the dyno below!
991.2 GT3 Dundon Street (Catted) 477whp peak
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Shipping Methods & Rates
We offer a variety of shipping options to meet your needs. The cost of shipping depends on the shipping method you choose, the destination, and the size of your order. Please refer to the shipping options available at checkout for more details.
Express Shipping: Delivery within 3-5 business days (next-day delivery for some locations).
International Shipping: Available to selected countries. Delivery time and shipping fees will vary based on destination.
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International Orders: Delivery times may range from 7 business days, depending on the destination country and customs clearance times.
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