Fujitsubo Super Ex Exhaust Manifold - Nissan Skyline GTS25 ER/ECR33 Accessories Do I have to modify

Do I have to modify my chassis to make this radiator fit

5" intakes

Use of high-quality engine oil such as SUPER OIL Premium API SP 10w-40 or SUPER TURBO RACING 5W40 is specified

Stable braking power and high fade resistance at sustained high temperatures

low-vibration drive

Fujitsubo Super Ex Exhaust Manifold - Nissan Skyline GTS25 ER/ECR33 Accessories Do I have to modifyThe Super Ex series of exhaust manifolds are the result of extensive in house testing by Fujitsubo in Japan. Each header is perfectly designed to give the optimal flow of gasses to offer improved power, throttle response and exhaust note for each application. Perfect fitment is guaranteed.