Page 1 of 1

2008 GT TBSti or 3.0R

PostPosted: Thu Sep 11, 2014 12:18 pm
by Kontrl
Hey there all,

One thing i'm wanting to achieve is the nice Subaru rumble :)

I have heard this is achieved with a boxer engine and UELs (If I'm not mistaken) But also heard it's nicer on a H6...

The GT TBSTi has the boxer engine but is only four cylinders, compared to the 3.0R which is 6 Cylinders H6.

Which engine would be best to achieve the Subaru Rumble? Looking at purchasing a Liberty in the near future (If the right car becomes available)

Further more another question :D

One thing I'd love to do is be able to control the exhaust volume to an extend, One way I can see this is achieved is by the use of a Varex Muffler system, but with the liberties being a dual exhaust system means two would be required if added on the tips... Has anyone replaced their mid-pipe muffler with a Varrex of similar specs? Did it work or fail miserably? If not is this concept nice or already flawed?

Re: 2008 GT TBSti or 3.0R

PostPosted: Fri Sep 12, 2014 12:14 am
by Moeeyy_
if you want the boxer rumble you'd go for the tbsti. H6's don't rumble, they scream, i don't know who told you that they rumble..

Re: 2008 GT TBSti or 3.0R

PostPosted: Fri Sep 12, 2014 7:26 am
by legacydan
Moeeyy_ wrote:if you want the boxer rumble you'd go for the tbsti. H6's don't rumble, they scream, i don't know who told you that they rumble..


Are the tbsti twinscrolls? If they are. No rumble there either ;(

Re: 2008 GT TBSti or 3.0R

PostPosted: Fri Sep 12, 2014 6:24 pm
by KiDo_Tuning
legacydan wrote:
Moeeyy_ wrote:if you want the boxer rumble you'd go for the tbsti. H6's don't rumble, they scream, i don't know who told you that they rumble..


Are the tbsti twinscrolls? If they are. No rumble there either ;(


2.5L single scroll :) Same as MY06+ WRX

Re: 2008 GT TBSti or 3.0R

PostPosted: Sun Sep 14, 2014 2:13 pm
by Kontrl
KiDo_Tuning wrote:
legacydan wrote:
Moeeyy_ wrote:if you want the boxer rumble you'd go for the tbsti. H6's don't rumble, they scream, i don't know who told you that they rumble..


Are the tbsti twinscrolls? If they are. No rumble there either ;(


2.5L single scroll :) Same as MY06+ WRX


So technically, if I go with he tbsti with a few changes to the exhaust I may have the wrx rumble?

Re: 2008 GT TBSti or 3.0R

PostPosted: Sun Sep 14, 2014 2:27 pm
by ferret89
TBE exhaust on the 2.5 will give wrx/boxer rumble

The 04-06 GTs with the 2.0 turbo engine are the ones with twinscroll and no rumble.

Re: 2008 GT TBSti or 3.0R

PostPosted: Sun Sep 14, 2014 3:44 pm
by KiDo_Tuning
Kontrl wrote:One thing I'd love to do is be able to control the exhaust volume to an extend, One way I can see this is achieved is by the use of a Varex Muffler system, but with the liberties being a dual exhaust system means two would be required if added on the tips... Has anyone replaced their mid-pipe muffler with a Varrex of similar specs? Did it work or fail miserably? If not is this concept nice or already flawed?


Dont need a Varex, with proper engine tuning with the exhaust on, the car is usually quieter on cruise/light throttle anyway. Under full throttle, noise levels go up ;)

Re: 2008 GT TBSti or 3.0R

PostPosted: Sun Sep 14, 2014 8:00 pm
by Kontrl
Interesting,

Thanks for all the comments - I shall now patiently wait for the correct GT TBSTi to become for sale and jump on it :)

Hoping to get the open sounds of the video :)

https://www.youtube.com/watch?v=e4l1yJBOWnQ