What causes exhaust drone ?

Exhaust modifications

Re: What causes exhaust drone ?

Postby scottb721 » Fri Oct 25, 2013 5:21 pm

Ordered the TCP quads this morning.
Looking forward to bolting them on.

Thanks for all the input.
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Re: What causes exhaust drone ?

Postby scottb721 » Tue Oct 29, 2013 12:43 pm

TCPs fitted. Looks great but hope the sound grows on me.
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Re: What causes exhaust drone ?

Postby SIMBAT » Tue Oct 29, 2013 9:31 pm

it will change a bit over time
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Re: What causes exhaust drone ?

Postby shav » Thu Oct 31, 2013 9:17 am

worst comes to worst you can always add a resi if you still dont like it after the mufflers carbon up.

and where are the pics??? :P :P
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Re: What causes exhaust drone ?

Postby alexeiwoody » Thu Oct 31, 2013 12:38 pm

scottb721 wrote:TCPs fitted. Looks great but hope the sound grows on me.


Too loud or raspy or not loud enough?
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Re: What causes exhaust drone ?

Postby scottb721 » Wed Nov 06, 2013 2:04 pm

Sorry for the delay.
Pic as requested - http://i.imgur.com/804uiyw.jpg

It's a very deep note but not raspy enough. Will try and further deduce what I'm hearing
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Re: What causes exhaust drone ?

Postby Smithy » Wed Nov 06, 2013 2:23 pm

Headers help out with a bit of raspy :)

No headers: http://www.youtube.com/watch?v=ahV5xjNYxzs
Headers: http://www.youtube.com/watch?v=qcGwDZpzijU
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Re: What causes exhaust drone ?

Postby shav » Wed Nov 06, 2013 10:21 pm

scottb721 wrote:Sorry for the delay.
Pic as requested - http://i.imgur.com/804uiyw.jpg

It's a very deep note but not raspy enough. Will try and further deduce what I'm hearing

That looks perfect scotty.
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Re: What causes exhaust drone ?

Postby alexeiwoody » Wed Nov 06, 2013 11:06 pm

scottb721 wrote:Sorry for the delay.
Pic as requested - http://i.imgur.com/804uiyw.jpg

It's a very deep note but not raspy enough. Will try and further deduce what I'm hearing


Do you mean not burbly enough? Asin the soobaru boxer rumble

That'll be affected by your cat back and headers too

Post up a sound clip/vid?
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Re: What causes exhaust drone ?

Postby shav » Thu Nov 07, 2013 9:59 am

correct me if im wrong but the 3.0's didnt have the same sound the 2.5's do with regards to the boxer note. Ive yet to hear a 3.0 to sound 'boxer-ish'.
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Re: What causes exhaust drone ?

Postby alexeiwoody » Thu Nov 07, 2013 10:50 am

You might be right Shav...oops :lol:

Reason I say rumble is - the TCP's are pretty raspy mufflers...if raspy is what Scotty wants, then I figured maybe he meant something else
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Re: What causes exhaust drone ?

Postby scottb721 » Thu Nov 07, 2013 8:57 pm

I think my problem is I was hoping to get something like I had with my 2.5.
Will get a recording over the weekend. It does sound good when you get up it though. Some how my fuel consumption has gone up now ;-)
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Re: What causes exhaust drone ?

Postby jay.ritchie » Thu Nov 07, 2013 10:18 pm

scottb721 wrote:I think my problem is I was hoping to get something like I had with my 2.5.


H6’s sound gorgeous!
I’m a little late to help you out, but this is my car- stock system with hitech quads- what you could have had!

http://www.youtube.com/watch?v=l6j17ND0X6o&feature=youtu.be
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Re: What causes exhaust drone ?

Postby alexeiwoody » Fri Nov 08, 2013 8:30 am

jay.ritchie wrote:
scottb721 wrote:I think my problem is I was hoping to get something like I had with my 2.5.


H6’s sound gorgeous!
I’m a little late to help you out, but this is my car- stock system with hitech quads- what you could have had!

http://www.youtube.com/watch?v=l6j17ND0X6o&feature=youtu.be


Way to show off and put down what someone else just got :lol: classy
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Re: What causes exhaust drone ?

Postby SIMBAT » Fri Nov 08, 2013 9:51 pm

scottb721 wrote:I think my problem is I was hoping to get something like I had with my 2.5.
Will get a recording over the weekend. It does sound good when you get up it though. Some how my fuel consumption has gone up now ;-)


your consumption has gone up because you keep accelerating hard to hear your exhaust lol.

The H6's wont ever have a (boxer rumble) because there are more fires per revolution of the engine.
H4's rumble due to both the separation of the headers, and the lack of cylinders. also the rumble can be accentuated with uneven headers... you's probably know they work but i'll explain anyway, one side of the headers have a longer travel to the Y pipe which delays the travelling exhaust enough to be closer to the pulse of the opposite header giving the exhaust a more throbbing pulse.

IMO i think the H6's sound Fking amazing, the h4 boxer rumble is soooo 1999.
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