Best Upgrades For Stock G35's Here you Go...
Registered User
Joined: Apr 2006
Posts: 1,536
Likes: 6
From: Fishers, IN (NE Indy)
Please provide pictures and links or a description of these various mods. Also include a brief explanation of why these items are favorable over stock equipment and estimated HP / Speed gains
For example: The polished kanuter valve results in increased speed because blinker fluid is able to pass through to the muffler bearings with less resistance, therefore there is less strain on the pulley system resulting in less parasitic power loss. In other words, more power is sent to the wheels and not wasted trying to push blinker fluid through a restrictive valve system. It’s good for an eighth of a second in the quarter and 17.345 HP (estimated).
But seriously, a lot of people new to the game may not know what these parts are. We need more tech articles. Cliffs notes, if you will. Thanks, I’m sure many people will find a guide like this convenient and interesting. Thanks!
CAI
Z-tube
short ram intake
K&N drop in filter
Plenum
plenum spacer
high flow cats
test pipe
mid pipe
Mrev
Mrev2
E-Cutout
12 Wire Grounding
Etc etc etc
For example: The polished kanuter valve results in increased speed because blinker fluid is able to pass through to the muffler bearings with less resistance, therefore there is less strain on the pulley system resulting in less parasitic power loss. In other words, more power is sent to the wheels and not wasted trying to push blinker fluid through a restrictive valve system. It’s good for an eighth of a second in the quarter and 17.345 HP (estimated).
But seriously, a lot of people new to the game may not know what these parts are. We need more tech articles. Cliffs notes, if you will. Thanks, I’m sure many people will find a guide like this convenient and interesting. Thanks!
CAI
Z-tube
short ram intake
K&N drop in filter
Plenum
plenum spacer
high flow cats
test pipe
mid pipe
Mrev
Mrev2
E-Cutout
12 Wire Grounding
Etc etc etc
Thread Starter
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Registered User
Joined: Sep 2006
Posts: 84
Likes: 0
From: Atlanta
Basically what I've heard is what restricts the stock G35 engine is the stock plenum and the stock cats. changing these to high flow plenum and high flow cats will squeeze all the hp from the engine. i have these mods on mine and are more than happy with the gains and the $$$ i spent. a total of $900. not bad considering there are exhaust for this much and the gains is not even close. I use crawfordZ products www.crawfordz.com
Originally Posted by HUMMERH2
eternity, my friend has an '03 G sedan Auto with Plenum and coupe mid pipe. He runs 14.45 to 14.5 all day long. that sedan is a fast bugger.
bro.... 111% of use have plenums.... our cars aren't going to run without one. LOL. if you are refering to an aftermarket plenum than specify..eg kinetix crawford motordyne etc... if you are talking about a spacer than do the same...
Originally Posted by HUMMERH2
i have these mods on mine and are more than happy with the gains and the $$$ i spent. a total of $900. not bad considering there are exhaust for this much and the gains is not even close. I use crawfordZ products www.crawfordz.com
$900?! you got the shaaaaft LOL... I paid $168 for my Kinetix plenum. and practically stole my Helix high flow cats when I got them off EBay for $27... too raspy for my sold them for $78. Under $200 for the saaame exact mods (basically) you paid for.. You got rip'd off
Originally Posted by HUMMERH2
... These modds add a noticeable power gains and the sound is great ! not loud< but louder than stock retaining the stock F1 tone. Dont spend money in other crap. Go for this set up, you will like it !
On my '04 6MT, I have a Crawford plenum, Crawford high-flow cats, ZTube, and an Amsoil nano air filter, H-Tech for 350Z springs, plus a Grounding Gear kit. New wheels are going to happen one of these days. That's all I plan to do for a while.
Registered User
Joined: Aug 2006
Posts: 178
Likes: 0
Originally Posted by filanj
$900?! you got the shaaaaft LOL... I paid $168 for my Kinetix plenum. and practically stole my Helix high flow cats when I got them off EBay for $27... too raspy for my sold them for $78. Under $200 for the saaame exact mods (basically) you paid for.. You got rip'd off
"It’s never enough”
Joined: Aug 2006
Posts: 219
Likes: 0
From: MIAMI, FL
aHero4Eternity I noticed in your sig you have an E-Cutout. What exactly is that? I think it’s a valve that gives you like open headers correct me if I am wrong if so did you get good gains from it.
Sorry to the OP if I am thread jacking
Sorry to the OP if I am thread jacking
Well actually, your info is a little biased isn't it? Seeing you got this advice from Crawford. I also have an older crawford plenum so I'm being honest here.
If you really look into the dynos that compare all the plenums/spacers, you will note that the biggest gainer was NOT a plenum, it was a spacer.
In addition to your NA list, the Mrev2 lower manifold is also a proven na gainer.
One could also argue that a reflash from TS would be another great mod to complete the hardware bolt ons.
But you probably won't get that info from that source of advice. Because those aren't Crawford products.
Although I agree in general terms with your advice, it's certainly not the end all of info you make it out to be.
If you really look into the dynos that compare all the plenums/spacers, you will note that the biggest gainer was NOT a plenum, it was a spacer.
In addition to your NA list, the Mrev2 lower manifold is also a proven na gainer.
One could also argue that a reflash from TS would be another great mod to complete the hardware bolt ons.
But you probably won't get that info from that source of advice. Because those aren't Crawford products.
Although I agree in general terms with your advice, it's certainly not the end all of info you make it out to be.
Originally Posted by HUMMERH2
Ok, Z-tube, K&N drop in filter, plenum, and high flow cats. This is all you need for a stock motor. Stock exhaust will flow perfect until you really start to add hp's under the hood. These modds add a noticeable power gains and the sound is great ! not loud< but louder than stock retaining the stock F1 tone. Dont spend money in other crap. Go for this set up, you will like it !
Originally Posted by Jeff92se
Well actually, your info is a little biased isn't it? Seeing you got this advice from Crawford. I also have an older crawford plenum so I'm being honest here.
If you really look into the dynos that compare all the plenums/spacers, you will note that the biggest gainer was NOT a plenum, it was a spacer.
In addition to your NA list, the Mrev2 lower manifold is also a proven na gainer.
One could also argue that a reflash from TS would be another great mod to complete the hardware bolt ons.
But you probably won't get that info from that source of advice. Because those aren't Crawford products.
Although I agree in general terms with your advice, it's certainly not the end all of info you make it out to be.
If you really look into the dynos that compare all the plenums/spacers, you will note that the biggest gainer was NOT a plenum, it was a spacer.
In addition to your NA list, the Mrev2 lower manifold is also a proven na gainer.
One could also argue that a reflash from TS would be another great mod to complete the hardware bolt ons.
But you probably won't get that info from that source of advice. Because those aren't Crawford products.
Although I agree in general terms with your advice, it's certainly not the end all of info you make it out to be.
well said!
and yeah.. same info from same source that made him overpay $500+
always research before you invest... otherwise you'll be ona those ppl who jump out the window everytime the stock market goes down