Derek RS GT3RS with Dundon Race Tunnel Run
These race headers are no joke worth every penny this is the real deal.
Video don't do it justice you need to hear it in person holy crap does it sound good!
I thought my center bypass sounded good but these race headers blows it out of the water in every way. In my opinion these headers are 30% louder than previous setup and the best part zero drone. Listen to the high pitch and the downshifts. I don't know how they do it but thank you Jamie for building such awesome headers 
One last thing the RS does pull harder.
Here's more on our GT3RS Race Headers from our website:
Please note: Race Headers are for Non US or for racing vehicles.
By understanding exhaust flow and resonance tuning, Dundon Motorsports developed this combination. The use of the the OEM center muffler and flaps allow for drone free, quiet cruising and a glorious porsche roar when on the throttle! This setup is bolt on and can be selected with or without the exhaust flaps.
Weight of the system is lighter than stock by far. Stock is 86 lbs, the weight of the Race Headers and stock GT3 muffler flaps is 36lbs This is complete header flanges to the exhaust tips including ALL hardware, clamps, straps etc, a savings of 50lbs!
These headers go great with our Lifetime Muffler! It's available in 2 "flavors" Quiet and Loud. The Quiet is for those customers looking for no drone* while cruising and to quiet the car at full boogie to attenuate some of the dB levels on the track or on the street. The Loud is the muffler for those looking for no drone* at cruise, but a pronounced bark when getting on it!
Click here to get yours today