Hey, I just got a 2005 infiniti g35, and i do love it. I was reading somewhere about good mods that will improve HP greatly, and i came across this:

" The HKS Hi Power Exhaust is by far one of the most popular exhaust systems available for the G35. My neighbor has a 2004 G35 w/ Turbonetics turbo system, 8psi, and has the HKS, and it sounds awesome. In terms of power, it is commonly agreed upon that the G35, whether it has the "Rev-Up" engine (like you do) or not, they do not respond well in terms of power gains from intake and exhaust mods, with forced induction being the only way to make serious horsepower. Based on sound, go with the HKS. Also, HKS has possibly the best sound quality. If you want hp and a new exhaust sound, buy test pipes (unless you're in CA). I know they're illegal, but for $100 or less, you can get the hp and a new sound that you want for WAY cheaper (HKS Hi Po exhaust costs 1600 new!). The EVO 2 is nice too, but isn't as deep a sound as I like.

If you want real hp from the intake, get the Motordyne MRev2 lower intake plenum (discounted price for members of the website I mention below, just go to the marketplace and search it), and also get the Motordyne 5/16" spacer. It costs about $500 in total, and is dyno tested by members with the RevUp motors to consistently get an increase upwards of 20 hp and 18 lb-ft of torque to the wheels. It's a great and reliable setup, and will give some of the best performance gains for the money.

Look at Test Pipes ($100), MRev2 Lower Plenum ($450-$500), Motordyne 5/16" spacer ($200) (I know it sounds like bs from the product description, and you'll probably think "this p.o.s. won't do anything, but trust me, hundreds of other G35 & 350Z owners did it and got 10 more hp to the wheels) and a Z tube + Pop Charger (like a Cold Air Intake, only cleaner looking, cheaper, and much more popular on the G35) ($150)

For less than 1k, you can get 30-40 real hp, instead of 1600 for 2 or 3 with an exhaust (it sucks that the VQ motors get almost no hp from exhaust mods, so you might just want to look at an midpipe and muffler combo like Magnaflow for the sound without all the cost. "

First off, is this true? Secondly, I really love the sound of the Motordyne Shockwave tdx2 with art pipes, but how much HP would this improve? and is their any combination that will give me the same sound as the shockwave with pipes, but give me the HP of the previous setup? assuming money is not an issue, thanks in advance.

 

P.S. what is a "rev-up" engine?
P.S.S If i were to put the shockwave exhaust, art pipe, plenum lower intake, spacer, and z tube+popcharger (or do i even need this, what does it really do?), that would give me the HP and the sound im looking for, right?

 

I assume you have the manual transmission. If you do, you have a REVUP. If it's auto you cannot have the rev up engine.

It's 05+ 6MTs are all REVUP. 03-04 all transmissions are NON REVUP, 05-07 autos are NON REVUP.

If you can reasonably afford all of the mods you listed, you have it right. You will get the best sound available to the G, period. It's the sound every other company tried to mimic.

If you are 6MT you will buy the Motordyne REVUP lower plenum. I think you need to get the plenum spacer too?

The Z tube makes for great noise gains but no HP.

Pop charger gives you a really unique squeal. This is an intake known for its unique air ram system "air pop charger." I don't like it, it takes away from the exhaust sound with your set up I think it will work out very well together.

I hope you make the right choice.

HKS Is a wonderful exhaust too. Because the motordyne exhaust is crazy expensive, you should look into getting it used.

 

Yes i have the 6MT. And oh okay, can anyone verify that the z tube give no HP boost? That being said, IF i went with the tdx2 with art pipes, plenum lower intake, and plenum spacer, I know that is the sound i want, but is that really a 30-40 hp gain? Also, what is a cheaper exhaust that sounds the same or very similar?

 

second'd

 

intake on our cars on their own do not give gains. when paired up with other breather mods and then tuned, will give gains.

 

Z tube has the same construction as the G tube. No baffles though.

You ultimately need a tune. You would see very noticeable gains. With tune 30-50 HP (depending on tuner and dyno).

You may be interested in Stillens headers for even more gains!

 

If you really want more air then get a 3" intake (custom only or marketplace) and a big intake...

 

HKS is a cheaper, but nothing sounds up to par with motordyne.


Your welcome...

 

Isn't the HKS like 2,000$? And I read a lot of people end up having the mid section replaced...seems like a lot of bank to have to replace the mid section on as well. Seems like a lot of bank for just an exhaust system period tbh.

 

Get a 3.5 inch furookie and an nwp tb. Really spices things up.

 

OP forget the notion that $100 test pipes are gonna sound good
They're gonna rasp like hell.


Oh and search

 

Bottom line...intakes regardless of who makes them or what they claim, by themselves offer no increase in WHP! Best intakes are made of plastic composite so you don't have heat soak which destroys hp. Stillen makes the perfect intake/z-tube combo so you don't have this issue! Back to breather mods, once you bolt on all the breather mods and get a Osiris tune that's where the whp/torque increase shows up. Depending on which motor you have you'll achieve that 30 to 40 whp increase!
Gary

 

You should try this one out and let us know how it goes.

http://www.ebay.com/itm/02-07-INFINI...f2dbae&vxp=mtr

 

Two things wrong...metal piping and exposed filter. These may work fine in the winter when it's cold, summer heat will cause heat soak so you'll have trouble keeping up with a '70s VW bus. If you don't have the $$ for the Stillen CAI/Z-Tube I suggested a K&N or AMSOIL drop in filter will help filter incoming air better than OE!
Gary