Intake part cracked.

Haulnz · 02-10-2012, 12:42 AM

I found a crack in this black plastic part on my intake. I went to nissan to get a new one, but you have to buy the whole intake unit. Around $320.

So my question is.

1. What is it ?
2. Can i not just join the pipes without the plastic box ?

Trips · 02-10-2012, 01:06 AM

Why couldn't you repair with epoxy or silicone. I would look for a used one if possible

Mandingo · 02-10-2012, 05:57 PM

^ Yep just repair it with epoxy. And yes you can just connect the two tubes without the box but I believe the box acts as a resonator. In some cars, removal of intake resonators will actually decrease the engine's performance slightly (also may increase the intake noise).

A short interesting read on this topic here

jhh343 · 02-10-2012, 08:03 PM

This happened to me as well. I have the hps tubes. I took that box out and bypassed it with 2 plastic elbows and a piece of tube from auto zone for a total of about $9. It looks like it belongs there and the car runs fine. I dissected the cracked part and the box was hollow. It was also completely clean inside so I don't think it served much purpose. I have about 500 miles on the car since then and everything is fine. I can maybe take a picture tomorrow if anyone needs to see. Hope this helps.

MaDMaXX · 02-10-2012, 09:37 PM

I've not heard of these extensions being related to any performance before, however, what i do know about them, is that they're for refinement.

It's a noise thing, as someone said, if you remove them, you might find an increased intake roar when you get on it. Most sports car drivers appreciate this, the 350z has a completely sealed/straight tube.

gotchu99 · 02-10-2012, 11:57 PM

Funny timing, just yesterday while checking my oil I noticed the same crack on the same side. I put hps tubes on last year and the fitment was tight. must of cracked the plastic on install. i just taped it back together for now with electrical tape until I get a new one or bypass it all together. . I did notice a little brass restrictor in the tube which kept me from getting new tubing. I doubt it really matters though.

DrEvil · 02-11-2012, 08:33 AM

I see that you have Stillen intakes. Om my R2Cs' that part was eliminated in the install, so I don't believe it does much to an aftermarket intake.

cdoxp800 · 02-11-2012, 09:14 AM

Remove it.. I deleted mine

02-10-2012, 12:42 AM	#1 (permalink)
Haulnz Base Member Join Date: Dec 2010 Location: South Africa Posts: 29 Drives: 370z Rep Power: 15	Intake part cracked. I found a crack in this black plastic part on my intake. I went to nissan to get a new one, but you have to buy the whole intake unit. Around $320. So my question is. 1. What is it ? 2. Can i not just join the pipes without the plastic box ?

02-10-2012, 01:06 AM	#2 (permalink)
Trips Administrator Join Date: May 2009 Location: Disneyland, Ca Posts: 8,732 Drives: 🔰 Rep Power: 10	Why couldn't you repair with epoxy or silicone. I would look for a used one if possible __________________

02-10-2012, 05:57 PM	#3 (permalink)
Mandingo Track Member Join Date: Nov 2010 Location: Dallas Posts: 625 Drives: '10 370z 6spd Rep Power: 3371	^ Yep just repair it with epoxy. And yes you can just connect the two tubes without the box but I believe the box acts as a resonator. In some cars, removal of intake resonators will actually decrease the engine's performance slightly (also may increase the intake noise). A short interesting read on this topic here __________________ some mods

02-11-2012, 09:14 AM	#8 (permalink)
cdoxp800 A True Z Fanatic Join Date: May 2009 Location: FL Posts: 1,337 Drives: 2011 Nismo Rep Power: 19	Remove it.. I deleted mine __________________ 2011 Brilliant Silver NISMO 370z. #: 0046. PPE LTH \| MillSpec Cats \| F.I Exhaust \| Akuma Intakes \| Rotora 6/4 Brakes

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02-10-2012, 08:03 PM	#4 (permalink)
jhh343 Base Member Join Date: May 2010 Location: Austin Posts: 25 Drives: '10 370Z 6MT Rep Power: 15	This happened to me as well. I have the hps tubes. I took that box out and bypassed it with 2 plastic elbows and a piece of tube from auto zone for a total of about $9. It looks like it belongs there and the car runs fine. I dissected the cracked part and the box was hollow. It was also completely clean inside so I don't think it served much purpose. I have about 500 miles on the car since then and everything is fine. I can maybe take a picture tomorrow if anyone needs to see. Hope this helps.

02-10-2012, 09:37 PM	#5 (permalink)
MaDMaXX Enthusiast Member Join Date: Jan 2012 Location: Oregon from England Posts: 292 Drives: 350z Rep Power: 14	I've not heard of these extensions being related to any performance before, however, what i do know about them, is that they're for refinement. It's a noise thing, as someone said, if you remove them, you might find an increased intake roar when you get on it. Most sports car drivers appreciate this, the 350z has a completely sealed/straight tube.

02-10-2012, 11:57 PM	#6 (permalink)
gotchu99 Base Member Join Date: Feb 2011 Location: ny Posts: 86 Drives: '09 370z black mt, Rep Power: 15	Funny timing, just yesterday while checking my oil I noticed the same crack on the same side. I put hps tubes on last year and the fitment was tight. must of cracked the plastic on install. i just taped it back together for now with electrical tape until I get a new one or bypass it all together. . I did notice a little brass restrictor in the tube which kept me from getting new tubing. I doubt it really matters though.

02-11-2012, 08:33 AM	#7 (permalink)
DrEvil Enthusiast Member Join Date: Jan 2011 Location: New Jersey Posts: 270 Drives: 09 370z,Blue, auto Rep Power: 15	I see that you have Stillen intakes. Om my R2Cs' that part was eliminated in the install, so I don't believe it does much to an aftermarket intake.