Test Pipes

[captint]

I should know, but don't, whats the point of test pipes?

[Stew]

What the hell are test pipes?

[Guest prescience]

No cats hence less restricted flow and with the engine being in essence a pump, in theory more power (but with the Z's ECU ......). Will also be much louder and non-resonated sound very raspy.

 

Will also need a method (non-foulers) of 'fooling' the 02 sensors because otherwise you will get a CEL due to the exhaust gas chemistry.

 

No point N/A, little point S/C and good benefit ST or TT

[Stew]

So is this like decat pipes then?

[captint]

So this is a straight through solution, is that a bit against the law? Would HF cats suffice or would they cause too much back pressure

[Guest prescience]

So is this like decat pipes then?

 

They are one and the same

 

They are illegal and will fail the MoT emissions test.

 

For S/C, HF cats are perfect, a little bit of back pressure helps IMO, for ST/TT you want to minimise back pressure altogether so HF with ST/TT is not a great option - could tip a borderline tune over the edge

[captint]

Poo, how do you get round this without becoming a law breaker? Would True dual and HF be ok?

[Guest prescience]

Poo, how do you get round this without becoming a law breaker? Would True dual and HF be ok?

Of course

[Ian]

Ive got decat pipes fitted, ill post a video later if you want hear how they sound

[captint]

Poo, how do you get round this without becoming a law breaker? Would True dual and HF be ok?

Of course

 

 

Yey

[StephenG]

Poo, how do you get round this without becoming a law breaker? Would True dual and HF be ok?

Of course

That's what I've got