I'm betting the Corsa setup will not be as quiet when idling or cruising.

When's the last time you've heard of a failing OEM exhaust system anyway? Doesn't happen very often these days.

 

What if it had butterly valves?

 

That is 6HP at peak. It might be more at other RPMs

All those after market ones that say things like "adds 15HP" don't say what RPM that is at. Plus like you said this will have better resale than aftermarket parts.

 

If it's only $500-600, I'm sure a lot of people would. Who cares when you're spending $50k on a car?

 

Pretty much. I would say the VAST majority of the cars you'll see on dealer lots will have this option.

 

Good point, I didn't even really think about how it could add more than 6hp under peak - though of course that doesn't mean that it does, either.

 

So, the new v8 engine for the base Vette lacks AFM. This is interesting for speculation purposes on the 5th gen. If the base v8 in the 5th gen truly does turn out to be the LS3, it seems likely that the v8 Camaros won't have AFM either, since it is absent in the Vette iteration. I can't imagine AFM would find itself on the top v8 model either, especially if it turns out to be blown.

At least there won't be any worrying as to how crappy the exhaust might sound when in 4 cylinder mode.

 

The base Camaro v8 most certainly would have AFM .....the LS3 wont be the base v8, but even if theoreticly were ....the LS3 is AFM capable . Given the Vettes lightweight , they do not need use AFM to make the economy #'s they wanted . AFM would not exactly be huge selling point in a full on sports car either , where it would be in a Camaro trying to appeal to the masses .

 

I guess another question is - the all new Vette comes out for the 2010 model year, right? I guess it will continue to use the LS3? Seems awfully quick to turn around and start using another new motor after only 2 model years with the LS3?

But then again I have to assume it would lessen the impact of the C7 if it didn't raise the bar with a new motor, and everybody is saying the C7 will be a revolutionary design like the C5 and unlike the C6. It'd also be the first new gen of the Vette to come out without a new motor since... ever? Not 100% sure on that one. I know C4 on forward all have had new motors upon release.

 

The LS2 was very short lived as well . Think of it as continuous engineering improvements rather than a switch as extreme as when the LS1 replaced the LT1 . GM vast use of the LS engines and their modular designs allow the them the ability for frequent updates .

 

True but this also brings about the question - might the C7, for the 2010 model year be when we see the next gen of GM V8 engine design? I mean the LSx will have been out from MY 1997 to MY 2009... sounds like a long enough run to me.

 

I think you will see new technologies applied as the LS engine is further evolved ....such as the 3 valve head , camless valvetrain or 2 cam in block . The original gen 1 small block lasted how many years ?

 

Really? Some of the people on here certainly seem to believe that the base v8 will be the LS3. Someone even wrote up a whole theoritical pricing guide assuming the base v8 will be the LS3.


This doesn't make any sense at all. Why would GM choose not to integrate a system to an engine to get even better gas mileage? Sure, the Vette is relatively light, and pretty aerodynamic, but why would GM not try to push the MPG even further with AFM?

If the base v8 really turns out to be the 6.2 LS3, I don't think it will have AFM in the Camaro. It would be nice for the one of the "winky guys" to chime in on this though.

 

I wouldn't count on the camless technology anytime in the near future. There was talk GM wanted the LS7 to have this technology a long time ago, but it was quickly realized that it just wasn't feasible.

I bet we don't see a dual cam in block engine anytime soon as well, if ever. GMs concept engine featuring this technology came out a long time ago, and nothing ever came of it. I would love to be wrong on this though. Hell, I would love to actually see the 3 valve heads come out as well. Arao engineering just developed a set of 4 valve aftermarket heads for the LS1, and even though they are expensive as hell, and their business practices have been questionable in the past, at least someone went ahead and did it. It would be nice to see GM do something with the 3v heads.

 

I said "quiet", not "as quiet". My Corsa exhaust is barely louder than stock under those conditions. At 20mph or more, assuming I'm cruising on level ground in the lowest appropriate gear, wind noise is louder.

That's a good point -- I haven't had a muffler rust out on anything newer than a 1993. Admittedly, I've only owned two cars newer than that. Then again, Chevrolet is introducing exhaust systems with moving parts, so only time will tell if they have limited lifetimes.