Intake & Exhaust Questions and info regarding various aftermatket exhaust systems for the G35 (Headers,Y-Pipes, and Cat-Back Systems)

Nvidia Gemini exhaust power gains?

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Old Jul 19, 2018 | 10:50 PM
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Matthew Mabry's Avatar
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Exhaust best for torque.

So I知 at that part of my build where exhaust is next. I知 looking for an exhaust that gives me the most torque for a good price. I壇 like some input from people that have an exhaust and saw a noticeable change.
 
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Old Jul 20, 2018 | 12:27 AM
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See the exhaust megathread. If you spend less than $700 be ready for it to sound like A$$.
 
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Old Jul 20, 2018 | 02:03 AM
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Nvidia Gemini exhaust power gains?

Just wondering if anybody out there has Invidia Gemini exhaust and has felt torque gains. Looking to pair it with the art pipes as well.
 
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Old Jul 20, 2018 | 06:11 AM
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Matt a couple of things. First of all please post new threads in their appropriate place, ie. this one should be in the Intake/Exhaust sub-forum so I'm moving it there. Second to help keep the forum as uncluttered as possible please only start 1 thread per topic. We've been around for 17 years and things get mucked up quickly so to help I've merged your 2 threads together about exhaust/torque.

The reality of the answer to your quest is no exhaust system will add enough torque/HP to feel any significant difference on it's own. What quality systems will bring to the table is greatly reduced/elimination of drone/rasp, reliable builds/materials/fitment and of course signature sound. You will get noticeable gains from opening up your whole exhaust flow from HFCs to mid pipe to muffler then finished with a tune. But now we're talking about spending close to $2K and the most you could expect to gain from all of that is somewhere between 20-30 HP which is in the range of about a 10% increase over stock.

The question you should ask yourself is "is it worth the gain for the money"? And that's an answer only YOU can decide.
 
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Old Jul 20, 2018 | 09:43 AM
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Matthew, the gains you're considering come at a cost which won't be achieved with a knockoff or y-back exhaust! Exhaust company's spend days/weeks testing their systems to maximize both the perfect (legal) sound and WHP. Motordyne or HKS exhaust systems along with Fast Intention HFCs plus a tune will get you the gains your want! Like Blue posted the cost is $2K+ or - a few $. However, that extra 30+ WHP will put a smile on your face every time you turn the key...something to consider!
Good Luck, enjoy the ride...Gary
 
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Old Jul 20, 2018 | 02:51 PM
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Search my dyno thread, I have the Gemini exhaust and hfc my favorite since day 1. I am happy and content, but If I'll have to do it again, I will go with TDX2 and art.
 
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Old Jul 20, 2018 | 02:57 PM
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In my opinion, Best bang for buck power upgrade = Vortech Supercharger.
 
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Old Jul 20, 2018 | 08:15 PM
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Originally Posted by Scorpi0
In my opinion, Best bang for buck power upgrade = Vortech Supercharger.
I know I'm gonna get flamed but I'm a bigger fan of the Stillen SC, the dealbreaker however is that ugly hood you have to use...

Numbers aren't everything.
 
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Old Jul 23, 2018 | 12:41 AM
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Originally Posted by deeliciousqueen
Search my dyno thread, I have the Gemini exhaust and hfc my favorite since day 1. I am happy and content, but If I'll have to do it again, I will go with TDX2 and art.
I recently bought this combo I'm very excited to install it !

Originally Posted by Scorpi0
In my opinion, Best bang for buck power upgrade = Vortech Supercharger.
Oh Dangit... I should've just bought a Vortech
 
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