I bought me a GTIR manifold earlier this year and test fitted it on my DE head and the bolt pattern was just about the same with the exception of 1 hole which was off a bit....
As for performance, Im not too sure but try to google Dent Sport Garage, they had a 240 with GTIR ITB's with a custom made plenum
Also, in an older issue of Super Street, there was an S13 with an NA SR that also used GTIR ITB's but they took out the plenum and used trumpets on it.
As for performance, Im not too sure but try to google Dent Sport Garage, they had a 240 with GTIR ITB's with a custom made plenum
Also, in an older issue of Super Street, there was an S13 with an NA SR that also used GTIR ITB's but they took out the plenum and used trumpets on it.