p-ten
Full Member
I recently purchased an Z-71 '03 Av. I am interested in adding some performance mods right away.
It sounds like the three top mods and intake, exhaust, and computer.
I have a couple questions...
Is their any particular intake system that is better then the others? I really don't care about looks, just performance for the $. I was leaning toward the Volant because it has an enclosed element and looks like it truly draws cold air. It also retains the resonator box. It seems some others noticed a small deline in initial throttle response with other intakes without the resonator. Is it true that the resonator lets the engine draw air easier off initial throttle tip in? It seems it may cause the air to flow, well, less straight. Then if these feature don't make a difference it looks like I can buy an AEM for almost $100 less.
Are any people experiencing any true HP gains from cat back exhaust systems? Or is the gain all in the muffler? I would like the truck to sound a little meaner but not too loud. I have need noticing that the stock exhaust systems have been improving substantially and it sounds lke the stock av is not that bad. I say that because I have a C5 vette. There have been numerous people putting on +$1000 cat back systems for 2HP. There is really no need for a bigger system until you heavily mod the engine (heads, forced induction) to utilize the incresed flow.
Finally, in regards to the programmers. Again I reprogrammed my AT vette's computer. What a difference. It was absolutely ridiculous what a difference it made. When it was stock and the trans shifted from 1-2, I would get a small chirp if I was lucky. With the new program I get the car sideways on the 1-2 at will, enough that the traction control has to reel it in. Can I expect a similar performance increase from the HPP. I know I won't be chipping tires but wanted to know if the performance increase was that dramatic.
Thanks.
It sounds like the three top mods and intake, exhaust, and computer.
I have a couple questions...
Is their any particular intake system that is better then the others? I really don't care about looks, just performance for the $. I was leaning toward the Volant because it has an enclosed element and looks like it truly draws cold air. It also retains the resonator box. It seems some others noticed a small deline in initial throttle response with other intakes without the resonator. Is it true that the resonator lets the engine draw air easier off initial throttle tip in? It seems it may cause the air to flow, well, less straight. Then if these feature don't make a difference it looks like I can buy an AEM for almost $100 less.
Are any people experiencing any true HP gains from cat back exhaust systems? Or is the gain all in the muffler? I would like the truck to sound a little meaner but not too loud. I have need noticing that the stock exhaust systems have been improving substantially and it sounds lke the stock av is not that bad. I say that because I have a C5 vette. There have been numerous people putting on +$1000 cat back systems for 2HP. There is really no need for a bigger system until you heavily mod the engine (heads, forced induction) to utilize the incresed flow.
Finally, in regards to the programmers. Again I reprogrammed my AT vette's computer. What a difference. It was absolutely ridiculous what a difference it made. When it was stock and the trans shifted from 1-2, I would get a small chirp if I was lucky. With the new program I get the car sideways on the 1-2 at will, enough that the traction control has to reel it in. Can I expect a similar performance increase from the HPP. I know I won't be chipping tires but wanted to know if the performance increase was that dramatic.
Thanks.