Mk3 Exhaust Thread!!!

[Bug_racer]

Sounds about right , the welding sometimes is just as important as the pipework and bends used . Tig is often better than mig .
Just the size is important in backpressure and extractor effect .

VR6's are a nightmare with all different runners

[Water Boy]

Dont have a rice pipe...

I would go a full 2inch system with a strait through muffler and a single 2.5 dump tip... Dont go to ricer... Extractors would be very nice and give an awsome tourqey sound...

Thats my 2 bobs worth...

Cheers James

[Golfer]

Thanks Seb and Brackie.

Invaluable information there.

I have a place around here that used to do my exhaust, and they made a great dual mandrel system for my xr8, so i'm sure i can let them go nuts on the dub.

I personally don't know a lot about small engine dynamics, but having driven a ford motorsport tuned V8 around for years, i understand how much difference it makes getting rid of your waste gas efficiently...

Thanks again guys. Having a rethink now and I'll post what i come up with

Cheers!
John

[golfvr6]

Any sugestions from any 2Litre-ers?

Sounds like a winner from me . . . But then i'm not really sure . . . I'm thinking off making mine a 2.5in zorst? will seee . . . .

my vr6 is a 2.5 inch mild steel, cat back with rear muffler only and single outlet. above 2500 revs, its not too loud.

my readings of the extractors on a vr6 (in 97) were that you didn't get much gain for the price. so that swayed me to stick with the stock ones.

[Draco]

Does anyone know any specs on the limits of the dB output of an exhaust system?

[GoLfMan]

Well, after goin through many stages, I've kinda found a "ok" point, but I'm sure it will change if I turbocharge. Obviously seeking less backpressure and the turbo acts as a muffler anyways.

Stage 1: Purchase and fitment of a DTM style muffler with twin round upswept tips = boring and quiet!!!
Stage 2: Go back next week for deletion of suitcase = OMFG! WHERE ARE THE EAR MUFFS??
Stage 3: Previous job sucked, so I got a press-bend catback done with 12" hotdog = not much difference at all...
Stage 4: DTM "muffler" rusted and internal baffles now rattled = eat my own arms off due to cringe factor!!!
Stage 5: Removal of DTM to a standard style back box, some sports model or something. 2 downswept tips= Comfortable

FUTURE: Who knows? Side Exit?

yeh mate side exhaust... 3" dump straight off the turbo!

[Water Boy]

Does anyone know any specs on the limits of the dB output of an exhaust system?

The legal street limit is 75dB and for the race track its 95dB...

[BlackVr6ix]

75? isnt it 90?

[Golfer]

Hey getting technical guys, is it possible to fit a VR6 spec Remus back box on a GL? Just i found one for special, and wonder if it'll fit mine? Is the layout of the rear of the cars identical?

[Golf Loon]

Hey getting technical guys, is it possible to fit a VR6 spec Remus back box on a GL? Just i found one for special, and wonder if it'll fit mine? Is the layout of the rear of the cars identical?

Yeah should be right. I think the twin pipe GL backbox is the same as the VR6 one anyway. Both exhaust systems follow the same path under the car.

[Golfer]

Thanx matt. I guess nobody likes the carbon fibre tips too much? $250's pretty cheap brand new...

[golfvr6]

some info here:

http://www.mimousa.com/home.asp?dir=products&prod=338

i remember looking at them once - they specified what they were for on the sticker 2.0/vr6/2.0 16v etc
but i think its ok

[Bug_racer]

The legal street limit is 75dB and for the race track its 95dB...

The race limit is 95 db approx 5 m away from the car while the car is under full load .

On the street its 96 for cars up to 1983 ? (around that year) and then 90 after that . The test is done 2m from the tip of the exhaust while the car is reved to approx 3000rpm .

[Golfer]

Cheers GolfVR6, I'm sure if it fits the VR6 and 16V GTI I can coax it into the back of mine

Again, just have to creatively 'lose' $250

Cheers!!!
John

[Water Boy]

The race limit is 95 db approx 5 m away from the car while the car is under full load .

On the street its 96 for cars up to 1983 ? (around that year) and then 90 after that . The test is done 2m from the tip of the exhaust while the car is reved to approx 3000rpm .

Damn i thoght it was a lot less for the road... Oh well means i can get some more noise out of the trusty golf...