G35 Sedan V35 2003-06 Discussion about the 1st Generation V35 G35 Sedan

OFFICIAL "What Mods Should I Buy?" Sedan Thread

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Old Aug 5, 2011 | 10:33 AM
  #511  
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I know I could get the pulley from stillen though evry y pipe or midpipe or hfc was 400 where did you get them for 60 or less than 100 from ?
........... I agree dampener = waste of money
 
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Old Aug 5, 2011 | 01:08 PM
  #512  
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Wow all this insight is SOO helpful! We all know the 05 g35 sedan intake manifold/system is super effeciant. Would it be smart to just go with the z tube ? or should i get the JWT pop filter and z-tube ? any suggestions?? since the z pipe with the pop in filter will be about $210 shipped. im wondering if i should go with this mod or should i go with the MOTORDYNE 5/16" COPPER ISO PLENUM SPACER for $250 shipped ?? what would be a better ovrall upgrade for my 05 sedan ??
 

Last edited by colinhuemmer; Aug 5, 2011 at 01:41 PM. Reason: add'd a question
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Old Aug 5, 2011 | 10:45 PM
  #513  
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Originally Posted by colinhuemmer
Wow all this insight is SOO helpful! We all know the 05 g35 sedan intake manifold/system is super effeciant. Would it be smart to just go with the z tube ? or should i get the JWT pop filter and z-tube ? any suggestions?? since the z pipe with the pop in filter will be about $210 shipped. im wondering if i should go with this mod or should i go with the MOTORDYNE 5/16" COPPER ISO PLENUM SPACER for $250 shipped ?? what would be a better ovrall upgrade for my 05 sedan ??

Get the spacer better bang for ur buck and you'll really feel it !
Intakes r all the same shizz
 
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Old Aug 9, 2011 | 12:08 AM
  #514  
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Hey everyone, I just picked up an 06 G35x last week and I had some ideas I wanted to get some input on:

Parts I have already ordered:
Amsoil drop-in air filter (i'm anti-oiled filters, and this supposedly flows just as well as a K&N if not better)
Grounding kit

Parts i'm thinking about ordering:
Stillen z-tube (Cheaper than the 350z tube. Supposedly works just as well. Input?)
CZP 9.5mm plenum spacer (I just don't think the Iso Thermal is worth it)
Hypertech Sport Power Programmer (Supposedly dyno proven 7hp gain on a stock engine. $334 on Amazon.)
High flow cats (What are the gains here? Is there a better part of the exhaust to open up?)

I'm looking for the best bang for the buck on these mods. Anyone have any suggestions on these? I don't think I would buy both the programmer and the cats, but who knows. I just don't want to spend over $100 for 1-2hp.
 

Last edited by keithk831; Aug 9, 2011 at 12:15 AM.
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Old Aug 9, 2011 | 12:37 AM
  #515  
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^ Get the MotorDyne 5/16" Iso-Thermal spacer (you're in UT, so maybe you should get the copper one) and some sway bars. MotorDyne, Stillen, and Hotchkis makes adjustable ones.

Those two are the best bang for your buck mods you can do if you don't want to do anything else to the car. You will feel each one.


- A 350z z-tube should be $40-$60. For the price may as well get the OEM one.

- That hypertech programmer probably won't do much - if anything - for $334. You may as well save another $200-300 for an UpRev Osiris tune from a local shop. Figure there should be one in SLC. Definitely a few in Vegas. If you don't want to do a tune, save your money on that programmer and get some 350z springs for a nice 1" drop.

- HFC's are decent. Test pipes would give you the most performance but will give you the gas smell. If you have the budget I'd go for MotorDyne ART pipes but they're expensive ($585 new but used can be had for ~$400) & you'd still get the smell but a hell of a lot of performance - the most among HFC's and other test pipes. For HFC's - people usually go for Berk's or Fast Intentions IIRC.



You can't squeeze out alot of power on these VQ engines if you stay NA - basically a plenum spacer, hfc/test pipes, exhaust, and a tune is about it (I know people do headers too but very expensive for the gain). Add in some weight reduction mods (lighter flywheel, etc.) and that's about it.
 
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Old Aug 9, 2011 | 01:10 AM
  #516  
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Originally Posted by S 854
^ Get the MotorDyne 5/16" Iso-Thermal spacer (you're in UT, so maybe you should get the copper one) and some sway bars. MotorDyne, Stillen, and Hotchkis makes adjustable ones.

Those two are the best bang for your buck mods you can do if you don't want to do anything else to the car. You will feel each one.


- A 350z z-tube should be $40-$60. For the price may as well get the OEM one.

- That hypertech programmer probably won't do much - if anything - for $334. You may as well save another $200-300 for an UpRev Osiris tune from a local shop. Figure there should be one in SLC. Definitely a few in Vegas. If you don't want to do a tune, save your money on that programmer and get some 350z springs for a nice 1" drop.

- HFC's are decent. Test pipes would give you the most performance but will give you the gas smell. If you have the budget I'd go for MotorDyne ART pipes but they're expensive ($585 new but used can be had for ~$400) & you'd still get the smell but a hell of a lot of performance - the most among HFC's and other test pipes. For HFC's - people usually go for Berk's or Fast Intentions IIRC.



You can't squeeze out alot of power on these VQ engines if you stay NA - basically a plenum spacer, hfc/test pipes, exhaust, and a tune is about it (I know people do headers too but very expensive for the gain). Add in some weight reduction mods (lighter flywheel, etc.) and that's about it.
Thanks for the response. Honestly i'm not sold on the value of the Iso Thermal spacer. I get the concept of it, but in reality I don't see much of a difference. With the amount of heat produced by everything below the plenum, it's going to run hot either way.

On CZP's website the 350Z tube is $95, compared to $64 for the Stillen one. Know of a better place to get a 350Z tube that's cheaper?

I'll look around for local shops that do Osiris tunes. Probably cheaper if I don't have to buy the cable/software.

I don't want test pipes; I want to keep the car 49-state legal. Are the gains worth it for the HFCs then, or should I do something else like a Y-pipe?
 
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Old Aug 9, 2011 | 03:44 AM
  #517  
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^I can't tell you to believe the iso-thermal spacer is worth it, I just read up on MotorDyne's website, talked to Tony & figured it was worth it. Not like there's a $200 price difference between the models. Go call or PM Tony here (SN: Hydrazine) - he won't sway you wrong.


For z-tubes, go to my350z and on here and troll the engine classifieds. One pops up every other week it seems like. Buying new is rarely worth it - not like they get worn down by wear & tear.

If you want to do your own tuning, you can just buy the software and cable; it comes with 1 or 2 preset maps IIRC.


Only you can figure out what gains are acceptable to you - not sure if even HFC's can pass smog so you may want to do the research/legwork yourself. Just search for berk's and other HFC's. There is a crap-ton of info on anything you could want on the forums. Spend a few days/weeks absorbing what you can find here. But a y-pipe by itself will not get you much gains, if any. There's not alot of mods out there that will get you good gains for the amount of money you'll put in unless it's to go supercharged/FI.



I love my ART pipes and the gains are well worth it to me. If it doesn't pass smog with the MD XYZ pipe with HFC that I have, I'll just go reinstall the OEM cats.
 
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Old Aug 9, 2011 | 07:59 PM
  #518  
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Ok, I just sent him a PM. Anyone else have an opinion on which type of spacer to get (among the same size)?

I just paid for a used 350z tube for $50 shipped, so that's covered.

That just leaves the tune and HFCs. Other input? Any other things i'm missing? Suspension isn't a huge priority for me at this point, and although a drop would be cool, the roads here are horrible so i'd end up scraping everywhere.
 
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Old Aug 9, 2011 | 08:23 PM
  #519  
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5/16" for more usable gains throughout the RPM range. 5/8" is more for top end gains.


Good buy on the z-tube pickup.


Adjustable sway bars would be your best bet if you're still going bang for the buck - if you have the funds adjustable endlinks front and rear would be a great upgrade over OEM. Also another one that gets overlooked sometimes would be stainless steel brake lines - like Stoptech. Improves pedal feel quite a bit. In addition, look at your pads (I use OEM)/rotors (Centric blanks are OEM)/tires (maybe wider and more low-profile).


If your sedan is getting along in age in terms of mileage, refreshing the shocks to Tokico Blues is a good option. 350Z springs paired with those would drop you a little and give you a firmer ride. 1" drop is nothing in grand scheme of things but any way to reduce the stock wheelgap is a godsend. Plus that drop requires no front or rear camber kits or rolled fenders. Just an alignment.


You can post in the Random Little Question Thread for more eyeballs to your queries.
 
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Old Aug 14, 2011 | 04:10 AM
  #520  
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So I have a 2005 infiniti G35x sedan I'm pretty noob modfying cars and what not but i have a few questions. I did some very very minor mods to my Infiniti so far nothing big just tinting my tail lights and I just ordered some demon eyes. The next mods I plan to do were for my exhaust system I was reading alot on HKS muffler and coupe together or 350z mid pipe but going to go with the coupe mid pipe. Need a new muffler anyways mine is rusting a little bit

1.Where could I get the coupe mid pipe and the HKS muffler? I know on mynismo you can get a HKS sport exhaust can somebody confirm if thats the right one for my car? the part # is 32008-BN001

2. If i got these 2 things what else would i need to get to make it work? Or would I just replace it directly from the mid pipe and exhaust i have?

3. How much i'm I looking to pay for all of this?

4. Could I expect a change in sound by just getting one of the 2 mentioned above?

EDIT: Also is there a specific year of coupe that I should get my mid pipe off of? or will any year do?
 

Last edited by Modifying bauss; Aug 14, 2011 at 04:19 AM.
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Old Aug 14, 2011 | 04:34 AM
  #521  
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^ Cool man, welcome to Driver. And thanks for posting up your questions in the right place as opposed to making a new thread on them. Another good place to ask random questions where alot of traffic goes through is here:

https://g35driver.com/forums/g35-sed...on-thread.html


1.Where could I get the coupe mid pipe and the HKS muffler? I know on mynismo you can get a HKS sport exhaust can somebody confirm if thats the right one for my car? the part # is 32008-BN001. Yes, that's the right part number. Check the vendors on Driver for their pricing - probably better than an outside vendor. The HKS can pop up in the FS threads for $100-$150 less so you can try to post a WTB thread looking for one. Also, a HKS on a 05/06 sedan needs an 03/04 mounting bracket and bolts. Think they're around $50 from the dealer or a vendor you purchase from. Ask THMotorsports or B2Auto I think they have the exact ones posted on their threads.

2. If i got these 2 things what else would i need to get to make it work? Or would I just replace it directly from the mid pipe and exhaust i have? They are direct replacements for OEM, outside of the HKS muffler requiring the 03/04 mounting brackets/bolts. Maybe you can buy new gaskets while you're changing it up unless they're still in good shape (usually in areas with good weather - TX/CA/FL).

3. How much i'm I looking to pay for all of this? Coupe middies are around $50-$100, sometimes with shipping, sometimes without. You can post a WTB but your best success would be to look for coupes in your general area to see if they've got an aftermarket exhaust, then PM & ask them if they still have their stock middies lying around. Also, a 350z middy would work as well - you'd have to get an exhaust shop to weld in a 6" or 8" extension I forget but it's easy for them to do. HKS exhausts are $390 or so from Driver vendors, $275-$325 used. Not sure how much shipping to you would be.

4. Could I expect a change in sound by just getting one of the 2 mentioned above? Yes, coupe middies give a nice growl. HKS is appreciably louder. Both will introduce a bit of drone , tho, at hwy speeds. You also may want to look into getting a HR y-pipe (taken from HR motor Nissan's/Infiniti's - 07/08 350z's mostly). Check this thread for different sedan exhaust clips:
https://g35driver.com/forums/g35-sed...mpilation.html

EDIT: Also is there a specific year of coupe that I should get my mid pipe off of? or will any year do? I'm pretty sure 03-07 coupes are all game, but don't quote me on that. Newer is usually in better shape tho.


If I were you, I'd get a 5/16" plenum spacer and sway bars first. Absolutely best first mods for a sedan, period (IMO). Will give you appreciable gains in steering and power and make it more fun to drive your sedan. Look a few posts above for more exposition. Also, I have a set of AAC Halo/demon eyes if you're interested.


Happy Modding.
 
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Old Aug 14, 2011 | 05:20 AM
  #522  
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Originally Posted by S 854
^ Cool man, welcome to Driver. And thanks for posting up your questions in the right place as opposed to making a new thread on them. Another good place to ask random questions where alot of traffic goes through is here:

https://g35driver.com/forums/g35-sed...on-thread.html


1.Where could I get the coupe mid pipe and the HKS muffler? I know on mynismo you can get a HKS sport exhaust can somebody confirm if thats the right one for my car? the part # is 32008-BN001. Yes, that's the right part number. Check the vendors on Driver for their pricing - probably better than an outside vendor. The HKS can pop up in the FS threads for $100-$150 less so you can try to post a WTB thread looking for one. Also, a HKS on a 05/06 sedan needs an 03/04 mounting bracket and bolts. Think they're around $50 from the dealer or a vendor you purchase from. Ask THMotorsports or B2Auto I think they have the exact ones posted on their threads.

2. If i got these 2 things what else would i need to get to make it work? Or would I just replace it directly from the mid pipe and exhaust i have? They are direct replacements for OEM, outside of the HKS muffler requiring the 03/04 mounting brackets/bolts. Maybe you can buy new gaskets while you're changing it up unless they're still in good shape (usually in areas with good weather - TX/CA/FL).

3. How much i'm I looking to pay for all of this? Coupe middies are around $50-$100, sometimes with shipping, sometimes without. You can post a WTB but your best success would be to look for coupes in your general area to see if they've got an aftermarket exhaust, then PM & ask them if they still have their stock middies lying around. Also, a 350z middy would work as well - you'd have to get an exhaust shop to weld in a 6" or 8" extension I forget but it's easy for them to do. HKS exhausts are $390 or so from Driver vendors, $275-$325 used. Not sure how much shipping to you would be.

4. Could I expect a change in sound by just getting one of the 2 mentioned above? Yes, coupe middies give a nice growl. HKS is appreciably louder. Both will introduce a bit of drone , tho, at hwy speeds. You also may want to look into getting a HR y-pipe (taken from HR motor Nissan's/Infiniti's - 07/08 350z's mostly). Check this thread for different sedan exhaust clips:
https://g35driver.com/forums/g35-sed...mpilation.html

EDIT: Also is there a specific year of coupe that I should get my mid pipe off of? or will any year do? I'm pretty sure 03-07 coupes are all game, but don't quote me on that. Newer is usually in better shape tho.


If I were you, I'd get a 5/16" plenum spacer and sway bars first. Absolutely best first mods for a sedan, period (IMO). Will give you appreciable gains in steering and power and make it more fun to drive your sedan. Look a few posts above for more exposition. Also, I have a set of AAC Halo/demon eyes if you're interested.


Happy Modding.
THANKS! So if I just get the coupe mid pipe and not the HKS muffler I wouldn't have to get all that mounting bolts and brackets rights? I actually just ordered some demon eyes from AAC they should be here in a couple weeks but are they hard to install? Is there anything special i need to do? Have any of you installed demon eyes to your car? Baking them seems kinda stupid to me but i guess thats how its done can someone explain the whole installing process to me more in detail? thanks I really appreciate it!!
 
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Old Aug 14, 2011 | 05:32 AM
  #523  
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Yep, coupe middies are a direct install with no modifying needed. Good luck trying to find one, though. They are pretty hard to find.

Baking is required whenever you want to open up the headlights - it's to soften the sealant so there's no getting around it. AAC will give you printed instructions as well as on a CD so they can answer all your questions. You may want to clear out the orange turn signal by dremeling it out and putting on a flourescent light fixture cover on it instead while your headlights are unsealed.
 

Last edited by S 854; Aug 14, 2011 at 05:36 AM.
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Old Aug 14, 2011 | 10:29 AM
  #524  
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Also see if there is an Infiniti dealership in your area. Ask at the service dept. if any G coupes might have come to them for an exhaust upgrade. Some of these shops have the remnants of the stock exhaust waiting to turn in for scrap metal. I've heard of a couple that have picked their middy up this way.

On a side note - use caution with S854's suggestion to knock out the amber lens while in your headlight housing. Once you remove that and do what he's referring to by replacing with a clear refractive lens piece and you don't like it, you're screwed. Once the deed is done you either live with it or you are forced to buy a new housing.
 
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Old Aug 18, 2011 | 03:16 AM
  #525  
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Originally Posted by AceG35X
Im pretty much in the same boat as you. If i hadn't lost my job I would have had my full exhaust done (HR Y pipes, magnaflow resenator, hks sport muffler). But i do have an intake, MD spacer, clear corners, tints, and all my lights are switched over to LEDs.. even my trunk and both glove boxes.. I dont recommand blue dome lights.. my Dome and corner lights are white. heres some pics.






Thats SICK! I have a 05 sedan I was wondering how did you get the LEDS on the sides? Also do you know how to replace the bulbs to LED for all the lights on the inside of my car? Like you said what voltage of LED to get? I plan to replace my license plate lights as well but if anyone can help thanks!
 
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