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I finally fitted the chinese downpipes this weekend!

what a job.. started saturday morning and finished midday sunday.

This is what they look like. Very well made. Nicely polished stainless and really neat TIG welds.


for £139 delivered I'm very happy! even came with new gaskets.

Their are mumblings afoot about making a missing cat an MOT failure in the future!!!!!!!

mcbutler wrote: ↑Mon Feb 12, 2018 5:54 pmTheir are mumblings afoot about making a missing cat an MOT failure in the future!!!!!!!

Better make good friends with your local test center then lol!

mcbutler wrote: ↑Mon Feb 12, 2018 5:54 pmTheir are mumblings afoot about making a missing cat an MOT failure in the future!!!!!!!

Exactly the reason I went with a primary cat delete, not secondary.
It's not possible to tell the car hasn't got cats without removing the undertray - something the MOT station isn't allowed to do.

Has anyone else that has these noticed you can now hear the turbo? It's like a whistling sound.

At first I wondered if if not aligned a gasket or something properly but I've double checked everything.

sunnydays wrote: ↑Mon Feb 12, 2018 6:06 pm

mcbutler wrote: ↑Mon Feb 12, 2018 5:54 pmTheir are mumblings afoot about making a missing cat an MOT failure in the future!!!!!!!

Better make good friends with your local test center then lol!

Already way ahead of you there....

Nick9one1 wrote: ↑Tue Feb 13, 2018 12:09 pmHas anyone else that has these noticed you can now hear the turbo? It's like a whistling sound.

At first I wondered if if not aligned a gasket or something properly but I've double checked everything.

After l had mine fitted I noticed the turbos whistling a lot but wasnt sure if that was to do with the remap or the downpipes. So are you planning on adding the charge pipe, new air intake maybe FMIC etc? I want to do more to mine this summer including suspension, not sure of the details yet, but it will be great to know what you have in mind for your Z.

Nick9one1 wrote: ↑Mon Feb 12, 2018 6:20 pm

mcbutler wrote: ↑Mon Feb 12, 2018 5:54 pmTheir are mumblings afoot about making a missing cat an MOT failure in the future!!!!!!!

Exactly the reason I went with a primary cat delete, not secondary.
It's not possible to tell the car hasn't got cats without removing the undertray - something the MOT station isn't allowed to do.

Surely they can see the downpipes have been changed just by looking under the bonnet?
Rob

you can't really see much down that side of the engine Rob, those 6 pots do take up a lot of room

Gaffa22 wrote: ↑Fri Feb 23, 2018 12:39 pmyou can't really see much down that side of the engine Rob, those 6 pots do take up a lot of room

Fair enough, I would have expected the 6 pots to be longer than the 4 pot but not necessarily wider?
I thought the N20 was pretty similar to the N54 but with 2 pots lopped off
Rob

Don't know if they are wider than the 4 pop Rob to be honest, i just had a look so see if i could see the down pipes, certainly would not be able to see if they cats or not

Gaffa22 wrote: ↑Fri Feb 23, 2018 5:30 pmDon't know if they are wider than the 4 pop Rob to be honest, i just had a look so see if i could see the down pipes, certainly would not be able to see if they cats or not

Good news, what they don’t know can’t hurt them
Rob

Nick9one1 wrote: ↑Mon Feb 12, 2018 4:34 pm I finally fitted the chinese downpipes this weekend!

what a job.. started saturday morning and finished midday sunday.

This is what they look like. Very well made. Nicely polished stainless and really neat TIG welds.


for £139 delivered I'm very happy! even came with new gaskets.

How are you finding them? How much difference does it make to the noise & performance?

As Above...