



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.
Bring your 3.4L Boxster or Cayman to the next level with our Intake Runners. When combined with our race headers and custom tune, you'll see gains of 60+hp and 40+trq at the wheels!
Using science and engineering to increase performance is what we do. The Dundon 981 3.4L Intake Runners are no exception. Through careful design of the intake runner geometry we were able to add horsepower and broaden the torque band. Add our already potent race headers and tune for the complete D4 Power Package!
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