Just received my Nismo Racing Radiator Cap. There is a warning
on the back of the box:
"This part has been designed and is intended for off-highway
application only. The installation of the part on a vehicle intended
for use on public streets or highways may violate laws and
regulations relating to motor vehicle safety standards or emission
regulations. Additionally, this part is sold "as is", without warranty
of any kind whatsoever, expressed or implied, (including all
warranties of merchantability or fitness for a particular purpose).
The installation of this part could also void vehicle or other Nissan
warranty coverage, or result in otherwise covered repairs being
excluded from coverage. Refer to an authorized Nissan dealer
or performance specialist for proper installation."

What the f*&^ is this all about? It is just a radiator cap that is
rated for a higher pressure! I went ahead and installed it,
(without professional help by the way). Of course I can't notice
a difference in my G35. What do you think of this rediculous
warning?

2003 Twilight Blue 5AT Sedan, sunroof,
Graphite Leather, splashguards,
12 wire Hyper-grounding kit,
350Z intake duct, Stillen Hi-Flow Airbox
Underbody rear diffusers, Drilled aluminum pedals

 

Sounds like a normal disclaimer to cover their a$$es.

Ivory Pearl coupe

 

They have that written on boxes with headlight bulbs and clear corners. It's a standard disclaimer so the company's that sell it and the companies that manufacture it is not held reliable when push comes to shove with the law.

Jason Siu
G35STUFF!

 

OK, but this is manufactured and sold by NISMO, Nissans own
division. Why would they put such a disclaimer on their own products.
It seems to me it is like Nissan putting a warning on their own parts!
When I buy windshield wipers at my Nissan dealership, I don't
see a disclaimer. This seems really cheesy. If I take my G35 to
Infiniti for service work and they see I have a Nismo radiator cap,
are they going to say "You car is no longer under warranty because
you put on a Nismo radiator cap." Sheeesh.......... WTF!

2003 Twilight Blue 5AT Sedan, sunroof,
Graphite Leather, splashguards,
12 wire Hyper-grounding kit,
350Z intake duct, Stillen Hi-Flow Airbox
Underbody rear diffusers, Drilled aluminum pedals

 

Nismo is still aftermarket, even though it's designed for the Nissans.

It's like Mugen parts - it's designed by Honda, but a lot of it is still aftermarket and could run risk with certain laws in certain states. It's just a way to protect the people that manufacture and sell these products - it's a huge liability for shops to do this without those warnings on EVERY single product.

Jason Siu
G35STUFF!

 

Another option is the radiator cap of a twin turbo 300zx. It's 1.2bar instead of 0.9bar stock. The NISMO cap is 1.3bar so it's just a hair better than the 300zxtt unit, but it's a good deal more expensive.

Justin McClanahan
Heavily Modified 95 Infiniti G20
Working on a G35 Project Coupe

 

Hmm.... I'm going to bring in my car for service this afternoob and I have both the nismo oil cap and radiator cap installed.... The appoinment is within an hour or so... and my engine is still warm... what should i do to switch back the radiator cap... lol...

2004 G35C 5AT Blk/Blk, Pfm Pkg

 

what the heck is a cap suppose to do other than look good!?! Doesn't sound like a performance mod to me..

 

It allows the radiator fluid to get hotter without causing overheating.

2003 Twilight Blue 5AT Sedan, sunroof,
Graphite Leather, splashguards,
12 wire Hyper-grounding kit,
350Z intake duct, Stillen Hi-Flow Airbox
Underbody rear diffusers, Drilled aluminum pedals

 

I had both the nismo radiator and oil caps on when I brought my car into the dealer this past weekend. They didn't mention a thing about it (or the grounding kit and z tube).

 

Glad to hear they didn't come on like:
"Sir, your car is no longer under any warrenty whatsoever
since you put on that Nismo radiator cap." HaHa

2003 Twilight Blue 5AT Sedan, sunroof,
Graphite Leather, splashguards,
12 wire Hyper-grounding kit,
350Z intake duct, Stillen Hi-Flow Airbox
Underbody rear diffusers, Drilled aluminum pedals