Hey welcome to the website. So I have 3 inch inlet and outlet on the intercooler. It JUST fits under the bracket with no modification. I wish I could of tucked the intercooler up more. Believe I have a tread stone 1035 intercooler if I remember right. as far as the intercooler brackets themselves I have two L brackets going straight back. The brackets are for bmw horns. Lol. Seems to be secure.