Thread: td5 exhaust upgrade

good 2.5" should be plenty big enough, get a free flowing muffler and ditch the rear resonator.

I did the opposite to Vern's suggestion.

Replaced the main muffler with a straight through piece of pipe, and left the rear resonator. No louder in the cabin, but outside you can hear the turbo whistle very clearly. A tad louder but not a lot.

Originally Posted by spudboy

I did the opposite to Vern's suggestion.

Replaced the main muffler with a straight through piece of pipe, and left the rear resonator. No louder in the cabin, but outside you can hear the turbo whistle very clearly. A tad louder but not a lot.

I did this also and mine is certainly a bit louder/throatier. Very definite whistle and appears to allow turbo to spin up much easier. Incidentally, I did this before I got TRS to swap ECU and there was a difference pre-to-post exhaust mod. The guys at TRS had never heard one sound like mine with exhaust done.

AG

Any gains in performance or fuel?

Originally Posted by Vern

good 2.5" should be plenty big enough, get a free flowing muffler and ditch the rear resonator.

Im told that diesels need air in and good flow out, im thinking of upgrading from the donk straight through. Look out!

Bronson, my mods are the EGR removed and replaced with a kit made by a mate, the exhaust pipe as mentioned and the TRS ECU. I make sure my air filer is clean/new, looking at a K&N next time and a Safari snorkel. Perfomance is great on/off road and towing my 800kg camper. Fuel use is no worse than when I bought vehicle stock, if anything a little better. I regularly get 9.5 - 10L/100km. Will see what happens when I go from 235/70 tyres to my new 245/75's.....hope this helps.

AG

Originally Posted by buddha D2

...., looking at a K&N next time
AG

Do a search here on K&N before you go ahead with that.

Some people are of the opinion that K&N are only good for keeping out large birds and rocks Not for use in dusty conditions.....