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Old Dec 30, 2007 | 01:29 PM
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I read on a earlier post the cost of the NPP mufflers. It was mentioned that the stock tips could be modified? Is that true? If so is there a adapter kit out there?
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Old Dec 30, 2007 | 01:30 PM
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Originally Posted by redc-6
I read on a earlier post the cost of the NPP mufflers. It was mentioned that the stock tips could be modified? Is that true? If so is there a adapter kit out there?
Modified to what?
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Old Dec 30, 2007 | 01:33 PM
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If someone made really nice looking rolled-edge 4 inch polished stainless tips that would slip over the pipes just aft of the mufflers, I would be first in line. I don't mind the sound of the stock exhaust (after having Corsa Indy's on my 98 for three years, the quiet is kind of nice!)---- but the stock tips look a little wimpy.........

Last edited by C6NRED; Dec 30, 2007 at 03:54 PM.
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Old Dec 30, 2007 | 01:41 PM
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Is there a way (kit) to put a electric cutout on the stock exhaust?
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Old Dec 30, 2007 | 01:49 PM
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Originally Posted by redc-6
Is there a way (kit) to put a electric cutout on the stock exhaust?
?? do you mean switch for the exhaust control (mild to Wild)
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Old Dec 30, 2007 | 01:49 PM
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Originally Posted by redc-6
Is there a way (kit) to put a electric cutout on the stock exhaust?
Of course. There are several electric cutouts on the market. Pretty much any Hotrod shop will have them.


http://www.pfyc.com/pc/GN5002/VTEXH/...st+Cutout.html

That will not make them operate like the NPP however and they are much louder when open than the NPP is. The NPP also opens based on throttle position and RPM. A cutout is simply a switch in the cockpit that the driver operates.

The NPP is still routing through the muffler and is a tuned exhaust. Electric cutouts are either stock through the muffler when closed or straight pipe just before the muffler and very loud.
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Old Dec 31, 2007 | 11:28 AM
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Originally Posted by redc-6
I read on a earlier post the cost of the NPP mufflers. It was mentioned that the stock tips could be modified? Is that true? If so is there a adapter kit out there?
The NPP exhaust is much more than just the tips, it's overaxle pipes + muffers + tips + vacuum lines + electric solenoids.

The NPP tips aren't sold seperately and won't fit the stock mufflers without extensive cutting and welding. The stock mufflers have extensive internal baffling and a single path to a single (less than 2") oulet while the NPP mufflers have 2 different internal paths and 2 separate outlets. You would still need to run vacuum and power to the NPP tips.
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