backpresure?

[Golf Loon]

I remember Brenton having a removeable exhaust and driving round centenial park with no exhaust on our first ever golf cruise.

Damn loud though. I think he is still a bit deaf now.

He also had a side exit exhaust for a while coming out behind the drivers door.

[The_Hawk]

it'll be SOOOOOOO loud without a back box.
wouldn't recommend it if you actually enjoy driving.

Oh yeah, if you like your ears just don't go there.

As first I pulled everything out of mine and had 2" straight through to a single rear muffler. It was loud and droney as all hell. It didn't bother me too much when I was by myself, but when I went on a cruise and put the kids seats and wife in the car they didn't like it so much.

Sounded like this:
http://www.youtube.com/watch?v=91iON0oAS4s

I then went to a 2.5" mandrel bent Lukey system so I now have cat -> flange -> 2.5 -> resonator -> resonator -> flange -> rear box:
http://www.youtube.com/watch?v=ZZFjj2OBSvs

The new system is much better, still got a serious growl and it still has some drone inside the cabin, but not as much as before so it's bareable, even with the family in the car.


As for back pressure, I went 2.5" because I am thinking of running a supercharger at some stage in the future, this sets me up for that. But even if your not 2.5" is still not a bad size.

[Shteifen]

my exhaust wasnt stock when i got it, its got a stock resonator, and a no name rear box and sounds ace. so i suppose the mid muffler and rear box were removed to replace it with the single rear box.
i had another rear box that i bolted up to it (was made to bolt straight up by someone else) and it was a straight through muffler. i didnt even get a hundred metres down the road before turning back. all my neighbours came outside to see what kind of jet fighter had gone past their house.
im serious, do not remover the rear muffler unless your going to replace it with something that is not straight through. your ears will bleed.

might be ok with a turbo though, cos they seem to silence the note a fair bit from what ive heard.

-steve