Silenced De-Cat pipes for my HR?

[ColinS]

Can anyone help with finding silenced de-cat pipes for my HR?

[Kwame@z1]

Is this what you are looking for Colin?

 

http://z1auto.com/prodmore.asp?model=35 ... rodid=3030

[Pingu2]

hmm those will hardly be silenced?

 

do you mean high-flow cats?

[Chris`I]

Dont think I've ever heard of silenced de-cats

 

Hi-flow cats will be your best bet mate if you're not going FI. De-cats will loose you back pressure and low down torque. Hi-flow will keep some back pressure and also be MOTable

[ColinS]

Is this what you are looking for Colin?

 

http://z1auto.com/prodmore.asp?model=35 ... rodid=3030

 

Kwame, was looking for resonated ones buddy. Something like these but for the HR:

 

http://www.z1auto.com/prodmore.asp?mode ... rodid=2840

 

and i spoke to my dealer today, they said they'd phone me back so i'll let you know as soon as they do.

[Pingu2]

well they are hardly silenced either !

[ColinS]

Pingu, they are actually. Takes most if not all of the rasp away compaired to standard pipes.

[Pingu2]

we will see!

[Stew]

You not concerned about losing torque with these?

[Adam@Z1auto.com]

resonated quite honestly are a waste (I have them in my car!) - no quieter than std test pipes

 

torque loss - toss that theory out the window.

 

If you want to increase the flow but not substantially increase overall volume, high flow cats are the way to go.

[ColinS]

I just don't want a rasp which full test pipes give you.

[Adam@Z1auto.com]

rasp is as much a function of the catback you use TBH

 

if you want to avoid rasp altogether, then you must stick to certain exhausts. At the same time, if you remove the stock cats, you must be willing to trade a bit of rasp for flow, it's just how it is