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Old 02-19-2014, 03:45 PM   #15
purpleRac3r
 
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I've had a chance to look at both systems up close. The tips for the base are welded to the mufflers. The tips on the NPP appear welded on but should be removable to service the valves. Adding the bigger tips should be a relatively easy cut and weld project, but the spacing is different than the NPP - the actual outlets on the mufflers are not in the same location. To get the functionality of the NPP would require adding the appropriate wire harnesses, the mufflers with the valves, and reprogramming the computers. I suspect it would get pricey pretty quick.

That said, Stainless Works and other companies make really nice polished tips in various shapes and sizes if you want the look of the bigger tips. As for sound and performance, I'd go with an aftermarket cat-back or axle-back exhaust from one of the aftermarket companies. There are some available now, and several more will be coming soon from what I've been able to find. I personally will wait for a cat-back system I like the sound of.
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Old 02-19-2014, 06:13 PM   #16
zimm888
 
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Quote:
Originally Posted by purpleRac3r View Post
I've had a chance to look at both systems up close. The tips for the base are welded to the mufflers. The tips on the NPP appear welded on but should be removable to service the valves. Adding the bigger tips should be a relatively easy cut and weld project, but the spacing is different than the NPP - the actual outlets on the mufflers are not in the same location. To get the functionality of the NPP would require adding the appropriate wire harnesses, the mufflers with the valves, and reprogramming the computers. I suspect it would get pricey pretty quick.

That said, Stainless Works and other companies make really nice polished tips in various shapes and sizes if you want the look of the bigger tips. As for sound and performance, I'd go with an aftermarket cat-back or axle-back exhaust from one of the aftermarket companies. There are some available now, and several more will be coming soon from what I've been able to find. I personally will wait for a cat-back system I like the sound of.
Thanks purple, appreciate the advice. I'll check stainless works out. As of this point, I am only looking for the most affordable way to have the appearance change. I do not need to change the sound or increase hp.

Would the difference in spacing be an issue for a muffler shop when putting 4" tips onto the mufflers that normally held the 3"?
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Old 02-19-2014, 08:10 PM   #17
purpleRac3r
 
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Zimm, the NPP exhaust has 4 separate pipes exiting the rear of the mufflers. The base exhaust has only 2 pipes exiting the mufflers that "Y" to the 4 tips. A competent muffler shop should be able to fabricate new "Y" pipes to recenter the tips. Keep in mind the pipes are short so there isn't a lot of room to make it happen. And just an FYI the mufflers between the 2 exhaust options are quite different in shape, but I would think you could swap in a pair of NPP mufflers and just skip the valves, wiring and programming. Might be an option worth looking at.
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Old 02-19-2014, 08:41 PM   #18
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Awesome purp, I'll speak to someone about this in the next month. Thx a lot.
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