HSV Stock headers vs SS Stock Headers

[darryl1]

they there fellas.
quick question.

I have an SSV with a Varex Cat Back system.
however i was wondering, if i change the headers and cat...with a STANDARD HSV header and Cat, with it make the car louder ?

cheers

Heya mate, did you end up getting the factory HSV headers fitted and if so how much difference did it make to power and sound?

 

[vr304]

Done this to my ss with de cat pipes although (I’m in NZ) definitely worth it if you can get them cheap it’s a good little upgrade

 

[darryl1]

Done this to my ss with de cat pipes although (I’m in NZ) definitely worth it if you can get them cheap it’s a good little upgrade

Thnx for that mate, im in NZ as well so am planning on taking my cats out too.. What differences did you notice? How much extra HP/KW, economy, sound etc ? i paid $228 for them of which $48 was courier. Have attached pic of them, same as yours?

 

[vr304]

Yea same as mine definitely tougher and deeper sound as for hp gains I don’t know as it was dyno tuned prior to having them fitted but does give better throttle response and a bit more power u will have to get the rear o2 sensors turned off in the tune if your not running cats mate

 

[vr304]

If you don’t have the cats you will have to get some pipes made up mate so just factor that in as well

 

[darryl1]

If you don’t have the cats you will have to get some pipes made up mate so just factor that in as well

Sweet as mate and thnx for your help. Looking forward to getting mine on

 

[Paul400]

I changed my SS manifold for hsv headers and cats .the sound was more tinny from the front hearing the exhaust flow through the thinner pipes which I like , performance wise it did go better but not alot.id recommend 4into 1 extractors would probably get more midrange and top end and sound then the hsv's.exactly if you get it cheap there better then stock SS but not a massive sound difference.depends on the cat back system you run too.

 

[glennho]

If you put hi flow cats on with the HSV try-y it will be louder. the HSV cats are the same as SS cats only the entry/ inlet is different.