davewalker

i have just bought a 2006 spec d sti and i dont know very much at all about mods etc iam thinking of changing the exhaust to a cobra cat back system and maybe a decent panel filter will i need a remap and will a good panel filter make any difference
cheers

BBB3

iTrader: (7)

to get the best out of them yes you will

davewalker

is it nessary with only a cat back system or will the car run ok iam not clued up on any off this and iam on a budget the mrs is going mad anyway for buying it ha ha

si2000

iTrader: (8)

I wouldnt say its essential with them modifications but it would be better all round if you did get it remapped. You will gain a few bhp and torque and it will be more fuel efficient too

jura11

iTrader: (7)

For cat-back(which is centre pipe and backbox) you will be fine without remap and you don't need remap.
But for power increase if you want i recommend you buy decat downpipe and upipe and after this you go on remap,and after this you will see increase in power.
Again if you want put just panel filter(no induction kit) you don't need remap.

alcazar

iTrader: (2)

LOL, welcome to the slippery slope.

E-mail Bob Rawle at BRD, or Duncan at Dynamix, or JGM off here and ask.

davewalker

will i get any power increase with the exhaust and panel filter alone i was thinking of the exhaust basicaly just for a better sound than the standard sti one i have now which is very quiet so will just replacing the backbox without the centre section make any difference

jura11

iTrader: (7)

Hi mate just buy for beginning catback from Cobra(nosiest is i think Cobra RaceBox),i think you have resonated centre pipe,which will "cut" noise from exhaust/backbox

davewalker

hi iam not after total noise just a nice sound is the cobra back box really loud as on there web site there is only sample videos of full systems

jura11

iTrader: (7)

No all Cobra are noisiest,just check Youtube.

davewalker

are there any that sound nice without been to loud and expensive

jura11

iTrader: (7)

http://www.youtube.com/watch?v=W0-Du...eature=related
and is 88dB(perfect for trackdays) this cost around 250-300£
http://www.youtube.com/watch?v=kAf4Vn3D7AM

davewalker

yeah those sound nice is there much difference in 2.5 inch bore compared to 3 inch in noise/sound

General-Lee

iTrader: (2)

I've got the Tornado 2 cat-back on mine bought from scoobyparts,by no means quiet but bearable on long journeys. I find it just right nice rumble on tickover and sounds sweet on boost.

Lee

jura11

iTrader: (7)

3" bore is slightly louder as 2.5",but for everyone is louder something different.
I have Blitz Nur Spec R which for everyone is loud,but for me is still quiet,just look on Youtube for Nur Spec and you will see....

davewalker

yeah thats pretty loud

Midlife......

iTrader: (2)

IIRC "Butty" on here had a Spec D of that vintage which he modded a bit ... Have a search for one of his posts and give him a PM.......always very helpful

Shaun