Upper Intake Manifold plenum worth it?
#1
Upper Intake Manifold plenum worth it?
Hi, I am new here, I just signed up today. I have a question about purchasing/installing an ebay Shift Works or Kinetix Upper Intake plenum manifold on my 2003 Infiniti G35 Coupe with 5-speed automatic transmission. I am wondering if this modification is basically worth the nearly 270 bucks they are both charging on ebay as far as gaining solid horsepower and torque or if it is better to just wait and save for the MREV2 lower intake manifold on my daily driver. I currently have NGK Iridium plugs, an ETD, an Injen CAI, and a 5/16 intake manifold spacer as far as bolt-ons and am looking for more to add power and performance to my daily driver. Thanks
#2
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Brad, since you're new read all the stickys at the top of the coupe page!
Hi, I am new here, I just signed up today. I have a question about purchasing/installing an ebay Shift Works or Kinetix Upper Intake plenum manifold on my 2003 Infiniti G35 Coupe with 5-speed automatic transmission. I am wondering if this modification is basically worth the nearly 270 bucks they are both charging on ebay as far as gaining solid horsepower and torque or if it is better to just wait and save for the MREV2 lower intake manifold on my daily driver. I currently have NGK Iridium plugs, an ETD, an Injen CAI, and a 5/16 intake manifold spacer as far as bolt-ons and am looking for more to add power and performance to my daily driver. Thanks
Last edited by gary c; 08-11-2017 at 08:55 AM.
The following 2 users liked this post by gary c:
brads350gt (08-12-2017),
Scottwax (08-11-2017)
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brads350gt (08-13-2017)
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#6
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Just ordered my Fast Intention resonated HFCs. Next I'll probably go with an HKS cat-back exhaust to compliment them. Also, what type of gains could I expect from a set of Stillen Grounding wires? I appreciate the great feedback, it has been a huge help. Thanks again,
- Brad
- Brad
Gary
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brads350gt (08-13-2017)
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#8
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Coupe 6MT Premium RAS
If nothing else that's a beautiful piece of bolt-on equipment, I'm super skeptical of their company though because the advertisement claims "+30 something horsepower!!" in an ad I saw once. Super sleazy way of making the claim too it was something like +5 hp at the low end, +10hp in the mid range, and +15hp at the high end rpms... =30 hp right???
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I drove ttrank's car solo
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G35 sedan w/ too much money in mods
Sadly a 5-10 HP gain won't be detectable from a butt dyno. Assuming a stock non-revup motor puts down around 210 to the rear wheels we're talking about a 2-5% increase (general numbers) and anyone who says they can feel a difference is delusional, senile or just in denial that the $300 or more they spent was a waste of money and time.
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Gary