Does anyone know how loud these are in Db? I ask because I DE my car and both tracks near me have sound check restrictions.

Read my post. The question is do I need 2 or 4? Both ends of the U pipe or just the muffler end. And no word on the Hanger mounting bolts? Don't be such a turd Slate. Ok, I'm calm again too.

lol the one U pipe came off the clamp and was sitting a inch from the muffler :P haha

do you have the secondary cat delete ?

Ok...now I'm stumped. I installed the 2" Easy clamp from NAPA...now called 2" SafetyClamp. I can't get them tight! I've tightened them down all the way and they still float on the pipe. My pipes seem to be 1 7/8" not 2". Anyone else found this? This is the connection from the muffler to the U pipe.

Unfortunately I do not have any wisdom for you on this one, as I had mine welded. I really don't like exhaust leaks...

That's a tricky one to answer. How loud at what distance? Under what conditions? Anyone with a smartphone can get a db reading that won't be dead on, but will put you in the ballpark. But obviously the loudness at idle from 15 feet (5 meters for you Metric types) will be a lot different than 6000 rpm at the the same distance.

As a strictly non-scientific answer, they're not so loud as to generate complaints from my neighbors or my wife. I'd say generally no louder than my GMC pickup with the Duramax diesel.

From the muffler to the U pipe, I used the OEM clamps, the easy clamp was only used for the cat bypass pipe connections in my installation. I looked at my connections and the muffler to the U pipe is definitely a smaller diameter, so yes, you would need a smaller easy clamp for that connection.

Thanks Bruce. That's what I thought. So the info in earlier posts saying you can use the 2" easy clamps on the U pipe to muffler connect is wrong. And from what I can see the smallest Easy Clamp is 2".

I think you have to hammer the U pipe into the muffler a bit then clamp, I butted the U and the muffler and it keeps sliding out

I must have missed that post or just didn't pay attention. It takes some fiddling to get the U pipe connected to the muffler, but once you do, the OEM clamps work well for that connection.

The U part has to be pushed into the muffler pipe correct? The cat delete / u pipe is butted though?

That sounds correct, but it has been a while since I did mine. You are using the step down pipe from the Cat delete pipes, right?

http://986forum.com/forums/uploads01...1434997250.jpg
http://986forum.com/forums/uploads01...1434997281.jpg

Yep that's not the trouble spot though it's where it hits the muffler

Fixed, cut a bit off the U pipe shoved it in the muffler and clamped tight.

Glad to hear, how does it sound now?

You know it sounds Kickarse now:cheers:

way more quiet, nice growl in the higher rpm. I think I am going to do the headers next

hey Martin, can you redo your before/after video now that its fixed?

Try this,

https://www.facebook.com/Martin.944/videos/1006029796088361/

Has anyone tried something like this for the drone. Early models don't have the double cats, so we can't do the cat delete or Easy Clamp.

Exhaust drone - solved

Sounds good Martin but like the one guy said, the second half of the video had too much wind noise. The sound is much clearer with the camera mounted on the back:cheers:

Haha yeah, but then you can't see the wheels spinning ;)

I do have two now though so I could sink the sound with the back gopro

For those with earlier cars who might interested in drone elimination....I installed the Manzo exhaust. Horrible drone in the low rpms. New clamps, no leaks. I installed 2" motorcycle cheapo baffles to test the sound. Works amazingly. NO drone. Quiet in the cab top up, or top down. Still a nice and raspy sound out side and behind the car. I ordered a set of 2" car chemistry baffles. $100 for two. I think they will bring back some low tones and flow better. Will update with pics when they arrive.

I just installed the Manzo muffler/TopSpeed test pipes on my 03 S. I used the "better" exhaust clamps. I have no drone and the whole thing sounds amazing. If you're interested in this mod, get hold of TopSpeed on the this forum and see if they'll extend the forum price. I got the TS test pipes for $159.

Good luck.

Tony

I will be picking up my first Porsche next week, a 2001 Boxster S, and after reading about how everyone is loving this exhaust set up, this will be first mod for sure. Then followed by the GT series projector retrofit headlights! I can't wait have perma grin once I start driving this car!

finally installed the top speed muffler and pipes on my 2000 and boy does it sound marvelous!! initially had some exhaust leaks which caused some droning between 2k and 3 k (it was a bit loud but bearable) but after rolling with it for about 300 miles i re tightened everything (used the easy seal clamps) and now it's as crisp as it can be. droning is virtually gone and it's less loud but when you jump on it the sound is just as i would have wanted this car to sound from factory.

tunnels and overpasses are just instant stress relievers! sounds like a swarm of angry African bees and you just can't stop smiling! i was going to upgrade my sound system next but now.. who cares! gas mileage is in the toilet though.. i'm on the gas all the time.

my only regret is not installing this sooner although it was nice to experience the boxster in it's stock form which was not bad at all. i do miss the intake sound a bit.

best mod so far!! more people should experience this amount of fun for just 500$