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my6thgen 04-08

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Member Credit: Matt Riney

The latest and completed Kern 7055_35 is now available for flashing!

  • Kernel 7055_35 is used by the early ecus 2002 & 2003 Maxima (and 2004 in most cases).
  • Kernel 7058 is used for 05+ Maxima
  • It’s all based on the ROM size. If the ROM size is 512K then  you should use the 7055_35 kernel. If the ROM size is 1024K then you use the 7058 kernel.

In order to flash, you will need to purchase a OBD2 KKL VAG-COM 409.1 USB Cable. You can order from eBay.

Kernel Features

The basic kernel is an implementation of an ISO14230-compliant protocol with extensions. It implements the following requests:

  • Fast ROM dump (tested up to 5.4 kB/s; typical speed is ~100 B/s without a kernel)
  • Read ROM/RAM/external EEPROM
  • Write to RAM
  • Erase flash ROM block
  • Write flash ROM block

Below is quick walk through on installing and running rom raider, along with dumping a Nissan Sh7055 ECU with the Nisprog/Npkern software.

 

Links to software:

Rom Raider:
http://www.romraider.com/RomRaider/Do…

Java:
https://java.com/en/download/

Nisprog:
http://www.romraider.com/forum/viewto…

Npkern (Latest Version npk_7055_35.bin):
https://github.com/fenugrec/npkern/tr…

Definitions:
https://github.com/murphyslaw05/Nissa…

Links to Nissan Roms:
http://www.romraider.com/forum/viewto…

How Does the Reflash Process Work?

The process is carried out entirely over the OBD-II “K Line” serial communications link through an undocumented set of manufacturer-defined extensions to the standard ISO14230 protocol. Recently, the necessary commands have been reverse-engineered revealing the required steps:

  1. Establish connection to the ECU.
  2. Send the first stage data payload: this is the “kernel”, a simple program that will receive commands and data for the reflash.
  3. Make the ECU run the kernel. From this point on, the kernel runs from RAM and effectively takes control of the whole ECU.
  4. Send the reflash commands and new firmware data to the kernel.
  5. Reset the ECU: the new firmware will now be executed, and the kernel will be completely removed.

Requirements

The basic reflashing kernel will support gasoline ECUs with:

  • SH7055 or SH7058, 0.18um microcontrollers (the most common types)
  • K line wired to the OBD-II connector pin 7

Unfortunately CAN-only ECUs are not currently supported.

Host computer:

  • OS: Linux and Windows are known to work; Nisprog is based on freediag source code which is cross-platform and should run on most Linux/UNIX flavors.
  • Connectivity: a simple USB-OBD adapter is required. These are the “Generic dumb serial adaptors” described in the freediag docs.

Note : J2534 devices are not currently supported by freediag.

Limitations

There are several important points to be aware of when using Nisprog:

  • The ECU is a safety-critical system in a car. Reflashing an ECU can void warranties, reduce the vehicle’s reliability, and cause a whole variety of undesirable consequences. Use of this project and any associated tools (freediag, Nisprog, etc) is of course entirely at the user’s risk. Standard disclaimers apply.
  • Reflashing an ECU may be illegal in some areas. Responsibility in this matter lies again with the user.
  • Diesel ECUs are not supported, they are entirely different.
  • Tuning and modifying ROMs are complex skills that can only be acquired through significant investments of time and effort!

my4dsc: 1010

Member Credit: Whore-Jay

The SSIM (Secret Sauce Intake Manifold) was created years ago by member SR20DEN. This involves cutting the shelf out of the main chamber of the upper intake manifold and removing the VIAS assembly. This will still lose a little low end power, but the gains in the top end are very noticeable. It’s definitely a modification that is worthwhile.

Below are the results of 3 different Intake Manifold setups. All runs done on the same dyno with the same AFR (tuned for 13) and around the same temp. Stock (runfile11), SSIM (runfile10), VIAS delete (runfile7). Your constructive input is welcome but I am not here to argue about any of my results, this is what I did and that is what I got end of story so please no flaming. Enjoy!!!

Stock IM with functional VIAS.

Stock IM with VIAS deleted, NWP Block plate used.

SSIM with VIAS deleted, NWP Block plate used.

All three HP overlay.

All three TQ overlay.

All data combined.

My thoughts on the SSIM vs Stock.

  • First of all I am suprised that the SSIM did so poorly when compared to both the Stock setup and the VIAS delete.
  • It posted losses across the board, it only begun to edge out the stock setup after 5600rpm with a gain of 12hp
  • at 6300rpm.
  • Against the VIAS delete setup it made the same peak power but posted some gains after 6100rpm, average of 5hp with a peak of 7hp at 6500.
  • It was totally killed by the Stock setup from 2500rpm until 3800rpm, max of 24tq at 3400rpm. Never made any gains in usable torque.
  • Killed by the Stock setup for HP as well, losses from 2500rpm until 3900rpm, an average of 10hp with a peak of 16hp at 3500rpm lost to the stock setup.
  • From 3900 until 5600 they were about the same.

My thoughts on the VIAS delete vs Stock.

  • 3800rpm seems to be the magic number in this comparison. Below 3800 the Stock setup is better but after that its all gains with the NWP Blockplate and the VIAS delete!!!
  • From 3800 all the way to redline with the VIAS delete I showed an average 8hp gain across the board with a peak of 10.5hp at 6000.
  • From 2700 until 3800 the Stock setup was good for an average of 8hp over the VIAS delete with a peak of 9hp at 3400.
  • From 3800 until redline the VIAS delete made an average of 8tq more with a peak of 10.5tq at 4200.
  • From 2800 until 3800 the Stock setup was good for an average of 10tq more with a peak of 16tq more at 3400.

The verdict….. Its really just up to what you want to drive with, I am choosing the NWP Block plate with an unmodifed IM for now. 

  • I like the power from 3800rpm until redline rather than power below 3800rpm, I feel the losses down that low are worth the gains I see up high. When I stomp on the gas I dont stay below 3800 for very long, this makes the VIAS delete a beneficial mod IMHO.
  • The gains from the SSIM is irrelevant since it only starts to make HP after 6100rpm and totally destroyed all low end torque. Since I run out of engine the SSIM may be a viable option with a TS ECU and a higher redline, timing etc, etc.

*Mods*

  • Unorthodox racing UDP
  • SSAC headers (no cat)
  • 2.5″ Catback
  • Magnaflow 27X6″ resonator
  • Stillen Exhaust
  • Frankencar WAI
  • Tuned APEXI NEO

my4dsc: 178

This is a gallery of Secret Sauce Intake Manifold (SSIM) Setups. The SSIM (Secret Sauce Intake Manifold) was created years ago by member SR20DEN. This involves cutting the shelf out of the main chamber of the upper intake manifold and removing the VIAS assembly. This will still lose a little low end power, but the gains in the top end are very noticeable. It’s definitely a modification that is worthwhile.

 

my4dsc: 132

V1 – Block Off Plate

Price: $27.99

Applications

  • 2002 – 2003 Nissan Maxima
  • 2004 – 2008 Nissan Maxima
  • 2002 – 2006 Nissan Altima
  • 2003 – 2007 Nissan Murano
  • 2004 – 2008 Nissan Quest

 Sold As A kit

  • 3 – Properly Sized Stainless Steel Bolts
  • 3 – Stainless Steel Lock Washers
  • 1 – Control Solenoid Valve Vacuum Cap
  • Printed Detailed Installation Instructions with Photos

Made from 6061-T6 Aluminum

The CXJ bop plate replaces the air restrictive OEMV.I.A.S valve. By removing this valve and installing the CXJ bop plate you effectively turn your manifold into an open air system..

V2 – Block Off Plates

Price: 84.99

Applications

  • 2009 – 2015 Nissan Maxima
  • 2007 – 2015 Nissan Altima
  • 2008 – 2015 Nissan Altima Coupe

Sold As A Kit

  • 8 – Properly Sized Black Torx 40 Screws
  • 2 – Control Solenoid Valve Vacuum Caps
  • Printed Detailed Installation Instructions with Photos

Made from 1/4 Phenolic grade material

These plates replace the air restrictive oem V.I.A.S valves. By removing these and installing the CXJ bop plates you effectively turn your manifold into an open air system.

Testing has shown an increase of 7 horsepower increase and 4.3 added ft/lbs of added torque

Video installation part 1 ( 2009 -2015 maxima shown )

Video installation part 2

V3 Block Plates

Price: 84.99
 

Applications

  • 2016+ Nissan Maxima
  • 2016+ Nissan Altima
 Sold As A Kit
  • 8 – Properly Sized Black Torx 40 Screws
  • 2 – Control Solenoid Valve Vacuum Caps
  • Printed Detailed Installation Instructions with Photos
  • Made from 1/4 Phenolic grade material

These plates replace the air restrictive oem V.I.A.S valves. By removing these and installing the CXJ bop plates you effectively turn your manifold into an open air system. The BOP Plate are estimate at an increase of 7 horsepower increase and 4.3 added ft/lbs of added torque

 

 

my4dsc: 96

V1 -Thermal Intake Manifold Spacers (3.5L DOHC V6VQ35DE)

Price: 164.99

Applications

  • 2002 – 2003 Nissan Maxima
  • 2004 – 2008 Nissan Maxima
  • 2002 – 2006 Nissan Altima
  • 2003 – 2007 Nissan Murano
  • 2004 – 2008 Nissan Quest

CXJ PERFORMANCE is proud to present phenolic its 3pc thermal intake spacers for the nissan. These spacers are made from 3/8 thick high grade phenolic. The spacers will isolate the throttle body , elbow and the manifold from the block.

With the isolated areas spaced off this way the manifold will run about 33 degrees cooler thus creating colder , denser , heavier air into the chamber

Dyno testing has shown an 12 horse power increase and 15 increase of torque.

Sold as a complete kit which includes:

  • 2 – Extended Stainless Steel Manifold Studs
  • 3 – Stainless Steel Manifold Bolts
  • 7 – 8mm Stainless Steel Lock Washers
  • 4 – Stainless Steel Allen Head Throttle Body Bolts
  • 4 – 6mm  Stainless Steel Lock Washers
  • Printed Detailed Installation Instructions with Photos

Please see our testing videos using a 2005 Maxima with these spacers. All CXJ Performance products are dyno tested. NO hypes or selling gimmicks

V2 -Thermal Intake Manifold Spacers (3.5L DOHC V6 VQ35DE)

Price: 179.98

Applications

  • 2009 – 2015 Nissan Maxima
  • 2007 – 2015 Nissan Altima
  • 2008 – 2015 Nissan Altima Coupe

CXJ PERFORMANCE is proud to present phenolic its 2pc thermal intake spacers. These spacers are made from 3/8 thick high grade phenolic. The spacers will isolate the throttle body from the manifold and also the manifold from the block.

With the isolated areas spaced off this way the manifold will run about 23 degrees cooler thus creating colder , denser , heavier air into the chamber

Dyno testing has shown an 10 horse power increase and 12 increase of torque.

Sold as a complete kit which includes

  • 2 – Extended High Strength Manifold Studs
  • 4 – Stainless Steel Manifold Bolts
  • 8 – Stainless Steel Lock Washers
  • 4 – Stainless Steel Allen Head Throttle Body Bolts
  •  Printed Detailed Installation Instructions with Photos

 

V3 Thermal Intake Manifold Spacers

Price: 179.99

Applications

  • 2016+ Nissan Maxima 3.5L DOHC V6 VQ35DE
  • 2016+ Nissan Altima 3.5L DOHC V6 VQ35DE

CXJ PERFORMANCE is proud to present phenolic its 2pc thermal intake spacers. These spacers are made from 3/8 thick high grade phenolic. The spacers will isolate the throttle body from the manifold and also the manifold from the block. With the isolated areas spaced off this way the manifold will run about 23 degrees cooler thus creating colder , denser , heavier air into the chamber.

The intake spacers are estimated at an 10 horse power increase and 12 increase of torque.

Sold as a complete kit which includes:

  • 2 – Extended High Strength Manifold Studs
  • 4 – Stainless Steel Manifold Bolts
  • 8 – Stainless Steel Lock Washers
  • 4 – Stainless Steel Allen Head Throttle Body Bolts
  • Printed Detailed Installation Instructions with Photos

FT-1 -Thermal Intake Manifold Spacer (4.0L  DOHC V6 VQ40DE)

Price: 149.98

Applications

  • 2005 – 2012 Nissan Frontier
  • 2005 – 2012 Nissan Pathfinder
  • 2005 – 2012 Nissan Xterra
  • 2008 – 2012 Suzuki Equator

PLEASE NOTE THAT THE BLACK SPACER IS SHOWN FOR FITMENT PURPOSES. YOU WILL RECIEVE THE BEIGE SPACER

CXJ PERFORMANCE is proud to present phenolic its VQ40 thermal intake spacer. The spacer is made from 1/2 thickness high grade phenolic. The spacer will isolate the manifold from the block.

With the isolated area spaced off this way the manifold will run cooler thus creating colder , denser , heavier air into the chambers

Dyno testing has shown an increase of 7 horsepower with 8 increase in torque across the lower and mid rpm ranges while reducing intake manifold temperatures by 18-21 degrees.

Sold as a complete kit which includes

  • 2 – Extended High Strength Manifold Studs
  • 5 – Stainless Steel Manifold Bolts
  • 5 – Stainless Steel Lock Washers
  • 1 – High Temp Gasket
  •  Printed Detailed Installation Instructions with Photos

 

my4dsc: 118

Member Credit: Rashun Laboy / David Colaire

Thanks to Rashun and David for finding a source that rebuilds OEM Axles (for ALL Nissan Maxima’s). The shop uses OEM parts for rebuild. Basically just bring them your Axles and they will rebuild it. It’s about a 2-3 hour / same-day turnaround. You can go have lunch and hang around for a bit. They also rebuild many other types of OEM parts such as calipers, alternators and starters.

As of Feb 2018, the shop is still offering this service. The cost of rebuild is $50.00 per Axle. You have to physically bring them the Axles (as they do not ship or sell OEM Axles).

Shop Address:
Quality Remanufacturing, LLC 
565 E 37th St, Paterson, NJ 07513
(973) 523-8800

my4dsc: 193