LS Exhaust Comparison Gold! HSV Headers vs Aftermarket Tri-Y's & 4-1's. What would you choose?

[426Cuda]

This.

Certainly don't see parts / systems at the prices @426Cuda paid over here.

Yeah, people have cottoned on...

 

[kleanphil]

yep.
Hindsight is a beautiful thing.

At first I thought I was doing away with my warranty and I was prepared to accept that , but the salesman later explained that warranty still applied , just not for the parts that I'd added

 

[LS1SS]

I have a set of HSV headers to swap for a set of new or near new electric bimodal cans if any one is interested in Syd.

 

[426Cuda]

I have a set of HSV headers to swap for a set of new or near new electric bimodal cans if any one is interested in Syd.

I have a HSV set if you're interested. Same controller as VF2 mufflers.

 

[PeteSS]

Mine came with 1 7/8 Pacemaker headers, 100cell cats, and 3 inch Pacemaker exhaust. Was way to loud so i replaced the cat back with a 2.5 inch Hurricane system. Drones a bit more with the 2.5 inch.

As far as power difference between the 3 inch and 2.5 inch, couldn't feel the difference. Nor could the dyno

 

[Smashfist]

Yes the LS3 is a bigger engine than the L76 so comparison on performance is probably invalid.

Displacement difference is about a bee's dick each bore. What makes a big difference breathing and sound wise is the LS3 has a more aggressive camshaft than an L77 so the breathing capability of the engine is different (and will affect things like drone points etc).

 

[Rikster71]

anyone aware of a full HSV340 system that's available, looking to swap out on my VFII Redline

 

[[paradox]]

anyone aware of a full HSV340 system that's available, looking to swap out on my VFII Redline

unless your reasoning is wanting to stay close to stock, you can probably pick up a brand new aftermarket system for similar price

 

[Rikster71]

unless your reasoning is wanting to stay close to stock, you can probably pick up a brand new aftermarket system for similar price

Thanks Parado, fro all accounts there would be some decent gains going with a HSV 340 system, unless I am missing something, I realise there may be slightly better gains with an aftermarket system, but I like the fact that a HSV system will look pretty much stock.

From what I see, but happy to be corrected, I get a better set of Headers, whilst not to the same level as say a set of Genie Tri Y's, they are still pretty good, and I get a set of higher flow Cat's and a 2.5" Mandrel Cat Back system, versus a restrictive manifold, restrictive cats and a 2.25 pressed system.

I am not after a loud system, I just want to free it up, and if I couple this with an OTR and a Tune I should be good to go, likely to pick up anywhere from 50-70Kw for less than $3,000. Although Budget is not the concern, my other option things like either a C&A 385kw system for $5k or a Walky for $7.5k both with 2.5 systems from either X-Force or DPE with OTR's from VCM so really not a huge difference.

I am happy for any recommendations considering the above, so not after noise, just want to remove the restrictions.

 

[dimetime]

Thanks Parado, fro all accounts there would be some decent gains going with a HSV 340 system, unless I am missing something, I realise there may be slightly better gains with an aftermarket system, but I like the fact that a HSV system will look pretty much stock.

From what I see, but happy to be corrected, I get a better set of Headers, whilst not to the same level as say a set of Genie Tri Y's, they are still pretty good, and I get a set of higher flow Cat's and a 2.5" Mandrel Cat Back system, versus a restrictive manifold, restrictive cats and a 2.25 pressed system.

I am not after a loud system, I just want to free it up, and if I couple this with an OTR and a Tune I should be good to go, likely to pick up anywhere from 50-70Kw for less than $3,000. Although Budget is not the concern, my other option things like either a C&A 385kw system for $5k or a Walky for $7.5k both with 2.5 systems from either X-Force or DPE with OTR's from VCM so really not a huge difference.

I am happy for any recommendations considering the above, so not after noise, just want to remove the restrictions.

id recommend c & a autofashion, the 2.5 catback system 1 3/4 headers would be great and with the cai youll be saving some petrol with a better tune. if your not wanting it too loud at certian times youll have the bimodal function to quite it down aswell!