ISR Steel braided turbo lines are direct replacement of factory turbo hardlines found in the S13, S14, S15 SR20DET (T25/T28) turbos. Utilize high quality aircraft fittings and comes with new aluminum washers. The new ISR lines utilize the newest Black stainless steel reinforced synthetic rubber with a lightweight outer fibre cloth braid. These lines give the engine bay a real clean look. Now Available for Top mount Turbo Setups also. Be sure to select Option in drop down menu!! Please specify engine model when ordering.