




Note! Discounts will apply automatically in checkout. Add product to cart to see a discount no coupon code needed!
Dundon Motorsports stands behind our products with a 30-day love it guarantee. We are confident in the quality and performance of their upgrades, but if for any reason they don't meet your standards or help you push your performance on track, you can send them back within 30 days.
Some products are built locally and made to order. Typical lead time for welded components (mufflers, headers) is about 7 business days after purchase. In rare cases timelines may change—we’ll notify you by phone.
Dundon Motorsports' 991 street header exhaust system is the elegant solution you have been waiting for!
This system features stainless steel construction that will withstand the most extreme conditions on the street or the track, while saving weight compared to the OE system.
Tuned length primaries lead to a high quality catalyst with minimal pressure drop, then onto a valved secondary that retains the function of the PSE button. No check engine lights, and no tune required!
Dundon Street Headers on a 991 GT3 makes 434whp peak, 30whp at 8215 rpm, 26lbft and 23whp gains at 4586 rpm.
Like all of our exhausts, this product includes a lifetime warranty, a 30 day money back guarantee, and is made in the USA.
*Muffler shown is not included with the system, only to see how the system mates to an OE RS Ti muffler
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