Getting Exhaust done (and turbo discussions)

[polo_spec_d]

So I have finally made time to do my exhaust and doing it this saturday, What I'm doing is flanging the rear muffler then making up a replacement pipe so I can switch back and fo with the two styles.

Anyone done anything like this before on the diesels? Its going to be interesting to see what the muffler weight is aswell.

Cheers,

Matty

[Greg Roles]

Larry one of the GT TDI guys on here removed his rear pancake muff, and reckoned it made no noise difference, but then we do have the ultra restrictive DPF to keep things quiet.

You simply can't have a free enough exhaust for a diesel, and apart from a resonator, I reckon you'd be right with little else.

Remember a diesel flows a LOT more air than a petrol, so you really can't make it too big. Same with the inlet....

[polo_spec_d]

yeah was thinking of keeping the new pipe the same size as the rest of it.

Thanks Greg

[MattyT]

Can u get more free flowing DPF's?

Surely if audi can have em on an R10 TDI they can be around somewhere.

I want to see some 3" turbo-back madness going on Matty

[MattyT]

Actually, according to http://www.vwwatercooled.org.au/newf...ad.php?t=17587 - you have no DPF matty. Let the 3" madness begin!!

[GoLfMan]

Polo TDI's dont have a DPF.

Im going to go a 3" turboback on my Polo when i get the $$$

[Greg Roles]

I'd reckon that'd be a great size for the polo. The Golf has a 2.5 mandrel, which I thought was fine, till I read my Yankie book, and now I'm thinking 3.5 / 4 inch!

Oh and as the exhaust runs cooler on a diesel, mild steel is just fine according to the Yanks!

[GoLfMan]

Oh and as the exhaust runs cooler on a diesel, mild steel is just fine according to the Yanks!

wasnt going to do anything different! stainless is a waste in Aussie conditions anyway

3" turbo back mandrel bent, high flow cat no muffler!!!! i recon that just might be the go

[Greg Roles]

Resonator, drone may be a killer in cabin. To save attracting any attention, and to be a bit polite, I plan to keep the stock tips at the back ( going nowhere ) and a big tip down onto the road just before them. I want the sleeper look, and well frankly, know enough coppers...

[polo_spec_d]

wasnt going to do anything different! stainless is a waste in Aussie conditions anyway

3" turbo back mandrel bent, high flow cat no muffler!!!! i recon that just might be the go

Keep us posted on this as i will be doing the same in june/july, getting oettinger done in two weeks so hopefully the Pogo is pushing 140Bhp by then