I've been keeping my eyes open, and the upgrades are now starting to hit the streets for the Spark. Seeing as this one is my first, I need a little help with the justification of adding any particular perf upgrade. Here are a few that I saw, and was in need of some help with the what, why, and why so much? Most of the parts listed will have the same questions, with a couple that are specific to the part.
1-Sea Doo Spark RIVA Pro Series Waterbox $399.95 What exactly does it do to the perf output, in terms of %? Will it make the ski obnoxiously loud? What am I giving up for the perf improvement, and if it is better, why didn't Seadoo design it this way from the factory? Cost? Noise?
2-Sea-Doo Spark R&D Sponson Kit $299.95 I pretty much understand the thought behind this one, I just can't understand the price. I know that the factory ones are not adjustable, which makes no sense to me, and these are which is great, but $300 for a couple pieces of molded plastic with some screws holding it together? I am trying hard to see the value proposition in this one. I know it would be better than stock, but I'd think in a cost plus style of mfg, they would maybe be in the $100 range? Or is this just the way it is when it comes to pricing for parts/accessories for PWC's? Remember, I'm new to this.
3-Sea-Doo Spark Rear Exit Exhaust Kit (2Up only) $299.95 Again, this one makes sense to me, but how will it effect the sound, and do you need to make a lot of other mods (intake for example) to get your moneys worth out of it?
4-Sea-Doo Spark R&D Adjustable Anti-Cavitation Pump Cone $298.95 After reading about it, seems to make sense, but on a non-turbo'ed, non-flashed 90hp unit, would it be worthwhile to do this? Also, if this is better than what it comes with currently, why didn't the mfg put it on from the factory? Cost, perf tradeoffs, reliability tradeoffs?
5-Sea-Doo Spark 12/17 Variable Pitch Impeller $249.95 Again after reading the description, it seems to make sense, but the same questions remain as in #4 above.
6-Sea-Doo Spark R&D Intake Grate $249.95 How does this do what it says it does in the description, and if it is that much better than one from the OEM, why wouldn't a multi-billion $ company with all this R&D available to it, just design it that way from the factory? I wouldn't think it would add That much to the price compared to the current factory one? Other than maybe cost, are there any other tradeoffs?
7-Sea-Doo Spark R&D Filter Kit $199.95 Less restrictive, I get that, but again, there must be a reason the factory didn't just design it this way from the get go. More chance of getting water in the intake? No idea, just trying to understand the downsides to using it.
Thanks for throwing out answers to my questions, they are all serious ones, I am not trying to troll at all. I just want to learn as much as I can about the upsides, downsides, (as well as if you should do upgrade A, B and D at the same time if you really want to get your moneys worth, because just doing B wouldn't make a big diff, that kind of thing) and reasons why as best as we can guess, because I seriously doubt someone from the Spark design team will come on here and give any definitive answers as to the whys, so you guys are the next best thing! Lastly, it seems that any hardware type of upgrade for the machine is always going to be in the $250-350 range, if not more. Is this pretty consistent for this type of toy? Thanks!
Oh, and one final thing. Will adding any/all of these void my factory warranty?