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Just spent the w/end making up an fitting a 2 1/2" system ,extractors an step through muffler.
Havent driven to far yet but it rev's easier an seems to pull a lot better .
Exhaust note isnt to bad until you get up around 2500 rpm.
The original flexjoint on mine had collapsed inside an was half blocking the pipe
By the end of the week i should know how much difference it makes to my economy.
That sounds nice Red , i just wish i had the money to get a 2 1/2 inch system for mine . I mite have to wait for a year or so as its not long since i have just got the truck . Let us now how it goes on the fuel side of it . cheers .
I just bought 3 metres of exhaust tube ,the muffler, 4 flanges an a 2 1/2" exhaust donut, About $200 all up plus the
$235 for the extractors.
An then spent the w/end in the shed with a beer an the MIG
Bit of work but cheaper than buying a ready made system or paying the exhaust shop to do it.
Still going to fit a small resonator in the back section to improve the note .
I believe if you are going to replace the exhaust go straight for the 3". My brother put extractors etc with 2 1/2" and wishes he'd gone the whole hog. He is late 70's and still goes outback bigtime everyear. cheers grumpy mongrel (this is non turbo 4.2gq)
my 4.2 TD has a 3'' exhaust with a can on the back. its no loader then stock but makes alot of difference with power and fuel. i dot it dyno'd and i'be got 97 RW KW running 12 psi boost. mate has his running 14psi with a stright trough system (which is loud as) and he has 114 RW KW. i get 650kms from a tank (85l?) or 1250-1300 from both tanks!.
cheers
Well the new exhaust is saving me about $10 a week,
I've fitted a 12" hotdog in the rear section which has quietened the note down a bit.
Red thats good .
Hi Red92gq so how is the system going now you have had it on for a while ?
Systems working good, but i'm thinking about changing the muffler as this one makes it sound like a 3 litre when your giving it the berries.