ITG Panel Filter (Nearly New)
15 August 2002, 08:28 PM
#1
Moderator
Thread Starter
iTrader: (5)
Join Date: Nov 2001
Location: Not all those who wander are lost
Posts: 17,863
Received 0 Likes
on
0 Posts
ITG Performance Panel Filter - Less than 2 months old, about 1k miles use, taken from MY97 Impreza.
Suitable for both Turbo and Non-Turbo Imprezas. Boxed in perfect condition.
Best offer secures
Suitable for both Turbo and Non-Turbo Imprezas. Boxed in perfect condition.
Best offer secures
16 August 2002, 09:24 AM
#5
Moderator
Thread Starter
iTrader: (5)
Join Date: Nov 2001
Location: Not all those who wander are lost
Posts: 17,863
Received 0 Likes
on
0 Posts
Buzz - Its an air filter, goes in the air box 
Glad you got the CDRW okay As it turns out my 40x writer doesn't seem much faster !
Devil's Refugee - Will not be able to check that mail until tonight. You can mail me at james.duncan@hays-ims.com if you like
Glad you got the CDRW okay As it turns out my 40x writer doesn't seem much faster !Devil's Refugee - Will not be able to check that mail until tonight. You can mail me at james.duncan@hays-ims.com if you like
16 August 2002, 10:03 AM
#7
Moderator
Thread Starter
iTrader: (5)
Join Date: Nov 2001
Location: Not all those who wander are lost
Posts: 17,863
Received 0 Likes
on
0 Posts
Indeed - Because foam is a depth media, its dust holding capacity is much higher than that of paper and cotton guaze resulting in a longer life cycle and a more consistant air flow to your engine.
Getting more air in and getting the gases out the back quicker results in more precious power
Getting more air in and getting the gases out the back quicker results in more precious power
Trending Topics
16 August 2002, 10:06 AM
#8
Moderator
Thread Starter
iTrader: (5)
Join Date: Nov 2001
Location: Not all those who wander are lost
Posts: 17,863
Received 0 Likes
on
0 Posts
The ITG panel filter has become legendary amongst Impreza owners, with over 4000 filters now in use.
It is not possible to fit a true induction kit to an Impreza, although many owners use cone filters on the end of Subaru’s induction pipework. The purpose of the filter is to allow large amounts of clean air into the turbo and we have yet to find a filter that cleans to the standard of the ITG and flows so much air.
An ITG will remove dust particles down to 10 micron, whilst many aftermarket filters struggle to stop 200 micron particles. This level of clean is essential if damage to the Mass Airflow Sensor and turbo impeller is to be avoided. Where the ITG comes into its own is its ability to keep on flowing air and still keep cleaning to the same standard.
The picture below shows a graph of the data resulting from a filter test at the Motor Industry Research Assoc. MIRA is an independent body used to test and certify automotive products in the UK. The graph shows all of the main panel filters available and measures their performance through a simulated life cycle. Fine dust particles were added to an air stream and the flow was monitored as the filters were loaded up with dust. The further across to the right a line goes, the better it is performing whilst holding a given amount of dust. When the line begins to go vertical, the filter is almost entirely blocked.
The small difference in flow rates when starting is negligible when you consider that air pressure changes by 600mm H2O on a daily basis. The difference once the filters start to hold dust changes very quickly. 100 grammes of dust is estimated as 30,000 miles of typical use.
ITG filters are coated in a polymer that is impregnated at over 100°C during manufacture. This process ensures uniform coverage using a specific amount of polymer. As customers cannot replicate this process, we recommend that your ITG is replaced every 30,000 miles.
You did ask 
It is not possible to fit a true induction kit to an Impreza, although many owners use cone filters on the end of Subaru’s induction pipework. The purpose of the filter is to allow large amounts of clean air into the turbo and we have yet to find a filter that cleans to the standard of the ITG and flows so much air.
An ITG will remove dust particles down to 10 micron, whilst many aftermarket filters struggle to stop 200 micron particles. This level of clean is essential if damage to the Mass Airflow Sensor and turbo impeller is to be avoided. Where the ITG comes into its own is its ability to keep on flowing air and still keep cleaning to the same standard.
The picture below shows a graph of the data resulting from a filter test at the Motor Industry Research Assoc. MIRA is an independent body used to test and certify automotive products in the UK. The graph shows all of the main panel filters available and measures their performance through a simulated life cycle. Fine dust particles were added to an air stream and the flow was monitored as the filters were loaded up with dust. The further across to the right a line goes, the better it is performing whilst holding a given amount of dust. When the line begins to go vertical, the filter is almost entirely blocked.
The small difference in flow rates when starting is negligible when you consider that air pressure changes by 600mm H2O on a daily basis. The difference once the filters start to hold dust changes very quickly. 100 grammes of dust is estimated as 30,000 miles of typical use.
ITG filters are coated in a polymer that is impregnated at over 100°C during manufacture. This process ensures uniform coverage using a specific amount of polymer. As customers cannot replicate this process, we recommend that your ITG is replaced every 30,000 miles.
You did ask
Thread
Thread Starter
Forum
Replies
Last Post
Mattybr5@MB Developments
Full Cars Breaking For Spares
28
28 December 2015 11:07 PM
Mattybr5@MB Developments
Full Cars Breaking For Spares
12
18 November 2015 07:03 AM