airbox mod
Joined: Aug 2016
Posts: 2,767
Likes: 234
From: In BOOST
my simple mind tells me the oem air box still sucks hot underhood air, the oem airbox snorkel is too short IMO and too close to the radiator. I never have been a fan of cooling plates, , more for looks than performance from what I've seen of them, though the AUT does help with the oem air box snorkel being too short, so it has some benefits in that respect. One of my other favourite mods with improved cold air feed to the intake is a vented hood to exhaust underhood heat. Get a good cold air feed to the intake and a vented hood and your intake manifold temps will be drastically lower in constant speed driving compared to the factory setup. The benefits of reduced intake manifold temps are hard to quantify or measure on a dyno but in street driving conditions very beneficial. My J's racing Type S hood with either the Mugen intake or the oem air box with J's racing snorkel was a great combination, cool air into the intake and cooler manifold temps worked great together.
Joined: Aug 2016
Posts: 2,767
Likes: 234
From: In BOOST
Community Organizer
Joined: Nov 2003
Posts: 20,983
Likes: 188
From: in my garage
You must first grind off all the heat shield tabs, it's not fun.
You could get away with 50ft. x 1 inch but you'd likely hate yourself for not buying 2 rolls of 50ft x 1 inch.
This is the second time I've done this. If you have questions just ask.
You could get away with 50ft. x 1 inch but you'd likely hate yourself for not buying 2 rolls of 50ft x 1 inch.
This is the second time I've done this. If you have questions just ask.
Registered User
Joined: Sep 2016
Posts: 2
Likes: 1
This was done on my S if anyone has any questions. I agree with many of you saying that it's hard to argue weather there are any gains with out a clean before and after dyno with out the header/Tp/flashpro. I do feel a stronger midrange punch with this increased air flow thru the airbox mod/header/tp and it sounds sweet thru the stock exhaust, not too loud she has a nicer purrr now.
It did 229whp/156tq with just these mods.
It did 229whp/156tq with just these mods.
