Chinese down pipes, charge pipes

[Paulwirral]

I remember a few people trying a very similar made Chinese exhaust manifolds on Audi s4 twin turbos , for all the welding looked great they cracked either sides of the welds . Granted these are downpipes and shouldn't get quite as hot as a manifold but I'd check them carefully before you install them .

 

[willgill]

I forgot the marque had started to reach such pond dredging levels

Meaning what exactly ?

Meaning people shoving on cheap jap downpipes rather than spend sensible money on what was once a 'premium' roadster.

 

[Dave1971]

I forgot the marque had started to reach such pond dredging levels

Meaning what exactly ?

Meaning people shoving on cheap jap downpipes rather than spend sensible money on what was once a 'premium' roadster.

WALOB

Be sure and avoid this then if you ever venture up to Edinburgh. The Chinese built it and the Eastern Europeans welded it in place.

 

[willgill]

Just to further push home my point, found some tyres for you

https://www.tirendo.co.uk/rotalla-setula-s-pace-ruo1-265-30-r19-93w-r-294483.html

 

[Smartbear]

Just to further push home my point, found some tyres for you

https://www.tirendo.co.uk/rotalla-setula-s-pace-ruo1-265-30-r19-93w-r-294483.html

I think you’re just taking the p*ss now! :roll:
Rob

 

[sunnydays]

I forgot the marque had started to reach such pond dredging levels

Meaning what exactly ?

Meaning people shoving on cheap jap downpipes rather than spend sensible money on what was once a 'premium' roadster.

Have to disagree here, BMW has not really been "Premium" for a long time, car finance has made cars like these reachable to a large amount of people including the "pond dredging levels" as you refer to above. You want high end and premium, go buy an aston or an exotic. Don't kid your self in to thinking BMW is high end, it has not been for a long time.

Edit: Also there is nothing wrong with Japanese parts, some are of poor quality, but that can happen with German parts too. Both German and Japanese manufacturers produce some fantastic stuff. The difference is primarily in price, and that's the 'German parts tax'. Not because they are any higher quality like so many want to desperately believe.

 

[willgill]

Just to further push home my point, found some tyres for you

https://www.tirendo.co.uk/rotalla-setula-s-pace-ruo1-265-30-r19-93w-r-294483.html

I think you’re just taking the p*ss now! :roll:
Rob

nah I'm really not, my point is uniform. Can't really see what is so hard to get to be fair. If those downpipes were any good then they would be universally adopted and used by tuners/modders alike, same goes for the tyres as an alternative example. If the thought of shoving shite tyres on your car isn't acceptable why would penny pinching on a critical engine component be any different?

Baffled

 

[Smartbear]

Just to further push home my point, found some tyres for you

https://www.tirendo.co.uk/rotalla-setula-s-pace-ruo1-265-30-r19-93w-r-294483.html

I think you’re just taking the p*ss now! :roll:
Rob

nah I'm really not, my point is uniform. Can't really see what is so hard to get to be fair. If those downpipes were any good then they would be universally adopted and used by tuners/modders alike, same goes for the tyres as an alternative example. If the thought of shoving shite tyres on your car isn't acceptable why would penny pinching on a critical engine component be any different?

Baffled

That’s just your opinion, maybe others don’t see it as penny pinching but instead consider the alternatives to be overpriced?
Rob

 

[Paulwirral]

Meaning what exactly ?

Meaning people shoving on cheap jap downpipes rather than spend sensible money on what was once a 'premium' roadster.

Have to disagree here, BMW has not really been "Premium" for a long time, car finance has made cars like these reachable to a large amount of people including the "pond dredging levels" as you refer to above. You want high end and premium, go buy an aston or an exotic. Don't kid your self in to thinking BMW is high end, it has not been for a long time.

Edit: Also there is nothing wrong with Japanese parts, some are of poor quality, but that can happen with German parts too. Both German and Japanese manufacturers produce some fantastic stuff. The difference is primarily in price, and that's the 'German parts tax'. Not because they are any higher quality like so many want to desperately believe.

China's not part of Japan , chinese parts are usually built down to a price

 

[stijohnny]

My experience.
I bought my downpipes from:- https://www.mlperformance.co.uk/products/vrsf-bmw-3-cast-stainless-catless-downpipes-v2-e89-z4-35i-35is-n54-2010-next-day-delivery
£400. I got them fitted by rebellion automotive(they said the pipes were a bstrd to fit and took an extra 2 hours to adjust/move things). I stuck in a K&N myself and rebellion remapped it to 385bhp an 450lb/ft.
Sounds like thunder if you lift off over 6k.
On the motorway, it drones a bit if you load it in 7th at 80mph, but if you cruise at 80 you cant hear it.
The real fun is on nice curvy roads in 3rd to 5th, as good as it gets!

 

[willgill]

I have the same downpipes in my car 8)

Just to confirm they are difficult to fit

 

[Nick9one1]

I'm going to order the Chinese pipes.
I'll report back on quality/fit after fitting.

 

[Nick9one1]

Could take the existing off and just smash out the mesh?

I think that's what twinturbo on here did to get a catless downpipe, not sure how he got it tested at MOT time?

Rob

Smashing the insides out shouldn't be any different to fitting a stainless downpipe.
There are two ways you can fail - visual removal (after Googling I think this might only be Diesels) and the emissions test. Most cars only need one set of cat's to pass, either front or rear (ours have 2 sets).

 

[Smartbear]

Could take the existing off and just smash out the mesh?

I think that's what twinturbo on here did to get a catless downpipe, not sure how he got it tested at MOT time?

Rob

Smashing the insides out shouldn't be any different to fitting a stainless downpipe.
There are two ways you can fail - visual removal (after Googling I think this might only be Diesels) and the emissions test. Most cars only need one set of cat's to pass, either front or rear (ours have 2 sets).

I’m pretty sure the 20i only has the one cat in the downpipe, the middle box is only a silencer
Rob

 

[Nick9one1]

I think that's what twinturbo on here did to get a catless downpipe, not sure how he got it tested at MOT time?

Rob

Smashing the insides out shouldn't be any different to fitting a stainless downpipe.
There are two ways you can fail - visual removal (after Googling I think this might only be Diesels) and the emissions test. Most cars only need one set of cat's to pass, either front or rear (ours have 2 sets).

I’m pretty sure the 20i only has the one cat in the downpipe, the middle box is only a silencer
Rob

Ah I didn't realise it was a 2.0 you were talking about. I'n that case you're probably correct!
Maybe he had a 'friendly' MOT station..

 

[Smartbear]

Smashing the insides out shouldn't be any different to fitting a stainless downpipe.
There are two ways you can fail - visual removal (after Googling I think this might only be Diesels) and the emissions test. Most cars only need one set of cat's to pass, either front or rear (ours have 2 sets).

I’m pretty sure the 20i only has the one cat in the downpipe, the middle box is only a silencer
Rob

Ah I didn't realise it was a 2.0 you were talking about. I'n that case you're probably correct!
Maybe he had a 'friendly' MOT station..

Twinturbos car was a 28i but runs the same engine & exhaust as the 20i
Rob

 

[JimsZ]

I think that's what twinturbo on here did to get a catless downpipe, not sure how he got it tested at MOT time?

Rob

Smashing the insides out shouldn't be any different to fitting a stainless downpipe.
There are two ways you can fail - visual removal (after Googling I think this might only be Diesels) and the emissions test. Most cars only need one set of cat's to pass, either front or rear (ours have 2 sets).

I’m pretty sure the 20i only has the one cat in the downpipe, the middle box is only a silencer
Rob

Good to know, MOT failure if that's the case so il definately leave that mod alone then

 

[stijohnny]

Smashing the insides out shouldn't be any different to fitting a stainless downpipe.
There are two ways you can fail - visual removal (after Googling I think this might only be Diesels) and the emissions test. Most cars only need one set of cat's to pass, either front or rear (ours have 2 sets).

I’m pretty sure the 20i only has the one cat in the downpipe, the middle box is only a silencer
Rob

Good to know, MOT failure if that's the case so il definately leave that mod alone then

Here's the link to what happened to me when I took my 35i (with newly decatted downpipes), to the MOT...

https://www.z4-forum.com/forum/viewtopic.php?f=23&t=99202

I include the exhaust emission stats in that post too.

 

[JimsZ]

I’m pretty sure the 20i only has the one cat in the downpipe, the middle box is only a silencer
Rob

Good to know, MOT failure if that's the case so il definately leave that mod alone then

Here's the link to what happened to me when I took my 35i (with newly decatted downpipes), to the MOT...

https://www.z4-forum.com/forum/viewtopic.php?f=23&t=99202

I include the exhaust emission stats in that post too.

Good news for the 35, mines a 28i 4 pot. My previous turbo'd car had a primary and secondary CAT so after removing the downpipeCAT it still passed an MOT. If I read Smartbear correct the 4 pot only has 1 CAT..?

 

[NeilMick]

Where are VRSF made?

Hudson, Massachusetts

Wrong, China, pond dredging indeed, AR Design or Supersprint all the way