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Thanks for all the replies. It's comforting to hear some other owners indicate that they experience drone with their OEM exhausts. I had a Fister Stage 2 on my 993. A little to loud for my wife, but I loved it. And, there was zero drone.
After some of the questioning about my claim of drone in an OEM exhaust, I went out to my car this morning to do some investigation. I experience drone on a cold start. The drone is at about 1000 rpm, so as you back the car out of the garage, you get the droning. Less on a hot engine, but still there.
I'll contact the vendor up in New Hampshire to see what he has.
Yours sounds like it's abnormal. I'd go to a dealer or somebody with a stock cab and see if you experience the same drone. Also, be sure all your nuts on the turbo and sensors are tight, anything loose will drone like a ******. I've seen a car demodded to sell and the guy didn't tighten the exhaust completely when he put the stock one back and it was loud as hell.
Typical stock drone is at about 2500 rpm.
Yours sounds like it's abnormal. I'd go to a dealer or somebody with a stock cab and see if you experience the same drone. Also, be sure all your nuts on the turbo and sensors are tight, anything loose will drone like a ******. I've seen a car demodded to sell and the guy didn't tighten the exhaust completely when he put the stock one back and it was loud as hell.
Typical stock drone is at about 2500 rpm.
Thanks Chris,
Next time I put the car up in the air in my garage, I'll go over the nuts and bolts as best can be reached. My car was a 2 owner car. First owner was a doctor. Second owner bought the car as a CPO. And, to the best of my knowledge so far, the car appears to be 100% stock. With cosmoline still all over the car, it is apparent that the engine has never been out of the car.
But, there could be a loose piece on the car. I'll spend a couple of hours looking.
My recommendation is to contact John, the owner of Speedtech Exhausts in NH. They make a few different options for the 997.1TT including a 2.5" version which is supposed to have no drone and not be quite as loud as the 3" version. They use german HJS cats and hand-make all exhausts to order in NH - not off shore. Very fairly priced too, compared to many other options that have the p-car tax built in to their price.
I personally purchased their 3" catted x-pipe for my 997.1TT. I absolutely LOVE IT, coming from the FVD exhaust I had on the car previously that I wasn't fond of.
With the 3" catted x-pipe (no muffler) there is some drone for sure when cruising - it isn't bad at all, but it's there. Considering my TT is not my daily, I'm perfectly fine with it.
I imagine that their 2.5" version with muffler would eliminate any drone. You should reach out to John and see what he recommends - he's a sponsor here on RL.
Thanks, Chris...That's correct, we have several 997.1TT exhaust models with a few different tip options to choose from - pipe size, muffler option and tip style all affect sound level. As you pointed out, we can tailor our system to fit most requirements and all systems are fully modular making changes in sound level easy and inexpensive. The various models are available catted or catless, catless being considerably louder. We also allow a one time sound level swap at no charge (within 30 days), should you wish to change something after hearing your system.
Here are some typical options pictured from quietest to loudest:
I will add that I agree with TT Surgeon - something does not seem right with your description of drone at 1,500-2000 RPM's. You may want to compare your car to another OEM car to see if you still feel the same in another car.
04-12-2017, 07:11 PM
