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-   -   An I asking too much? (http://986forum.com/forums/boxster-general-discussions/58829-i-asking-too-much.html)

CHRISP357 09-20-2015 04:49 PM

An I asking too much?
 
As I plan projects for my car's next hibernation, one wish keeps coming to mind. I want that burble sound from my exhaust upon deceleration. I don't want to buy a new exhaust system, encounter any CEL or cause any drone. Does this seem realistic?

Fintro11 09-20-2015 05:05 PM

Quote:

Originally Posted by CHRISP357 (Post 466860)
As I plan projects for my car's next hibernation, one wish keeps coming to mind. I want that burble sound from my exhaust upon deceleration. I don't want to buy a new exhaust system, encounter any CEL or cause any drone. Does this seem realistic?

top speed secondary cat delete / muffler will do that for you :D i get lots of gurgle lots of head turns and lots of compliments

thstone 09-20-2015 07:39 PM

Quote:

Originally Posted by CHRISP357 (Post 466860)
Does this seem realistic?

No.

With that being said, Fintro proposed a reasonably affordable solution that doesn't have much drone but does require changing the exhaust system. Be aware that the exhaust will also be MUCH louder than stock - but it does sound very bad ass.

CraigM 09-20-2015 07:55 PM

Above is all true. I have Circuit Werks / Beluga, but same deal.
I got quite a bit more decel burble when I went to a 75mm TB and 997 plenum T, but exhaust was already in place, so I doubt it would have the same effect with stock exhaust.
Car is a 2.7 5-speed.

Timco 09-20-2015 08:23 PM

Can anyone point me to a video with sound of 'drone'?

I don't know exactly what that sound is, and it sounds like I wouldn't want that sound if I heard that sound.

Top_Ramen 09-20-2015 08:25 PM

Replace all cats with test pipes and run some race gas to richen the car up.

Porsche9 09-20-2015 08:59 PM

Quote:

Originally Posted by Timco (Post 466891)
Can anyone point me to a video with sound of 'drone'?

I don't know exactly what that sound is, and it sounds like I wouldn't want that sound if I heard that sound.

Not sure "drone" can be captured in a recording. Part of it is a feeling/vibration you get from the sound in in ears. It's rather unpleasant.

CHRISP357 09-21-2015 03:35 AM

Quote:

Originally Posted by Fintro11 (Post 466862)
top speed secondary cat delete / muffler will do that for you :D i get lots of gurgle lots of head turns and lots of compliments

Sounds like what I'm looking for. No drone? What do you do about the O2 sensors left hanging?

CHRISP357 09-21-2015 03:40 AM

Quote:

Originally Posted by thstone (Post 466884)
No.

With that being said, Fintro proposed a reasonably affordable solution that doesn't have much drone but does require changing the exhaust system. Be aware that the exhaust will also be MUCH louder than stock - but it does sound very bad ass.

My mistake, I wasn't clear enough. I meant that I don't want to change out the entire exhaust, headers, etc. but I'll give Fintros recommendation a try unless someone gives me a reason not to.

steved0x 09-21-2015 06:11 AM

Quote:

Originally Posted by CHRISP357 (Post 466916)
Sounds like what I'm looking for. No drone? What do you do about the O2 sensors left hanging?

If your 986 is a 2000-2004 all the O2 sensors are up in the exhaust manifold with the integrated cats. The 2nd cat is not monitored by the ODBII system and has no O2 sensors. I have the 2nd cat delete on my 2000 and it did nicely improve the sounds and there is some of the burbling like you describe. It is a little louder too but not extreme. I like it!

Steve

CHRISP357 10-10-2015 07:59 PM

Haven't located any Top speed test pipes. Circuit Werks just as good?

Fintro11 10-10-2015 08:09 PM

Quote:

Originally Posted by CHRISP357 (Post 466916)
Sounds like what I'm looking for. No drone? What do you do about the O2 sensors left hanging?

nope don't have to touch them, the drone can be annoying if you drive at low rpm's I drive at 3 - 4k rpms haven't had any drone

Fintro11 10-10-2015 08:14 PM

https://www.facebook.com/Martin.944/videos/vb.100000440490443/1006029796088361/?type=3&theater

https://www.facebook.com/Martin.944/videos/vb.100000440490443/1015963708428303/?type=3&theater

https://www.facebook.com/Martin.944/videos/vb.100000440490443/1009799145711426/?type=3&theater

those are a few videos of it i have

Fintro11 10-10-2015 08:20 PM

that last video skip to near the end to hear a 2015 gt3 fly by at about 200 km/h

CraigM 10-11-2015 12:58 AM

Quote:

Originally Posted by CHRISP357 (Post 469447)
Haven't located any Top speed test pipes. Circuit Werks just as good?

As far as I can tell. They are just pipes with bungs, just screwed the supplied plugs in with some thread locker, I believe you have to do the same with the Top Speed pipes (most are made to work on all 2.5/2.7/3.2, and 2.5's have the O2 sensors here).

Muzzle of Bees 10-11-2015 06:30 AM

Quote:

Originally Posted by Timco (Post 466891)
Can anyone point me to a video with sound of 'drone'?

I don't know exactly what that sound is, and it sounds like I wouldn't want that sound if I heard that sound.

If you have a truck with four doors, roll down the rear windows partially and drive. You will get a horrible sound/vibration that is really hard to deal with. I can easily execute the drone sound in my xterra doing this.

samandrewsone 10-11-2015 10:08 PM

I guess they are just pipe joints with bungs, just attached the provided connects in with some line locker, I believe you have to do the same with the Top Rate pipes

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