QUESTION: Adding NPP
Thread Starter
Racer
Joined: Sep 2016
Posts: 342
Likes: 15
QUESTION: Adding NPP
I have the NPP exhaust and am ready to add it to my 12" GS Centennial Edition. I can't believe this car had everything but NPP.
Regardless, my question is...do I need to tune the car after adding the NPP?
Regardless, my question is...do I need to tune the car after adding the NPP?
Thread Starter
Racer
Joined: Sep 2016
Posts: 342
Likes: 15
Thanks! I can't wait to get them on...this car sounds like a hybrid right now. Why in da hell did they even offer these silencers for such a nice car. It's just wrong! LOL
Last edited by CaliVetter; Sep 26, 2016 at 04:46 PM.
Le Mans Master
Joined: Oct 2014
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From: Atlanta GA
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Thread Starter
Racer
Joined: Sep 2016
Posts: 342
Likes: 15
Yes, but thank you for helping. I plan to just install it and see if I need NPP in a box or if I am happy with always ON. I have a REAL hard time paying $200 for NPP in a box. It looks like about $15 worth of Chinese parts to me. No disrespect to the maker in any way.
Racer
Joined: Jul 2014
Posts: 469
Likes: 44
I put in my npp in a non npp car. I switch mine via a rocker mounted in knee bolster, looks factory.
I don't recall npp in a box having everything you'll need. As in, the vacuum solenoid and vacuum fittings to engine and tubing.
I don't recall npp in a box having everything you'll need. As in, the vacuum solenoid and vacuum fittings to engine and tubing.
Thread Starter
Racer
Joined: Sep 2016
Posts: 342
Likes: 15
it would be great to hear more about how you hooked yours up. I'm under the impression that the NPP in a box is pretty much my only option because my car never had NPP. Looks like some tubing, remote fobs, fuse splitter and a box that controls the actuators. I realize I'm being very judgmental of a system I personally can't create but $200 is ridiculous. If anyone has a more cost effective solution that they used, please share it. Thanks in advance.
Racer
Joined: Jul 2006
Posts: 324
Likes: 14
From: Moberly Missouri
So let me get this straight. If I find a NPP I then have to buy NPP in a box thing? I too want more sound than my daughters Camry hybrid. Trying to do it for a reasonable price. But $600 for NPP and $200 for the box and then $100 for mild to wild. Wife won't go for expensive upgrade.
Thread Starter
Racer
Joined: Sep 2016
Posts: 342
Likes: 15
So let me get this straight. If I find a NPP I then have to buy NPP in a box thing? I too want more sound than my daughters Camry hybrid. Trying to do it for a reasonable price. But $600 for NPP and $200 for the box and then $100 for mild to wild. Wife won't go for expensive upgrade.
You can get NPP for less than $600. I found a set with pipes and everything off a 2013 Grand Sport that were taken off at 100 miles. They're basically new and I paid $400.
Also, the NPP in a box has everything, so the M2W switch isn't needed, but I still think $200 is too much for it. Maybe I'm just cheap? I can afford to own my Grand Sport Centennial and am in good shape financially because I don't just throw $$$ at my problems.
I'll be riding "FAST N' LOUD" unless I can't take the drone and then I guess I will "throw some $$$ at my problem" LOL
Burning Brakes
Joined: Jul 2014
Posts: 781
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From: Dayton OH
So let me get this straight. If I find a NPP I then have to buy NPP in a box thing? I too want more sound than my daughters Camry hybrid. Trying to do it for a reasonable price. But $600 for NPP and $200 for the box and then $100 for mild to wild. Wife won't go for expensive upgrade.
Last edited by MH663; Sep 30, 2016 at 10:35 AM.
Instructor
Joined: Mar 2007
Posts: 194
Likes: 10
From: King George Virginia
Search 12v vacuum switch. They are pretty inexpensive. You will also need a switch, fuse tap and holder, wiring, hose and a vacuum reserve canister. I'm sure you can put all that together for less than $50.
Of course this method will be manually controlled.
Of course this method will be manually controlled.
Last edited by Kahunah911; Sep 30, 2016 at 08:19 PM.