FAST 146301 LSXR 102mm Cathedral Port Intake Manifold Lower Shell

The FAST 146301 LSXR Intake Manifold replacement lower shell is designed specifically for cathedral port LS engines, featuring a 102mm throttle bore for maximum airflow. This lower shell is constructed from FAST's advanced polymer composite material in a sleek black finish, delivering significant performance advantages over traditional aluminum intake components.

Key Features:

• 102mm throttle bore opening optimized for high-flow cathedral port applications
• Advanced polymer composite construction reduces weight compared to aluminum intakes
• Superior heat dissipation properties keep intake air temperatures cooler for improved power
• Increased structural strength resists warping and maintains consistent sealing
• Black finish complements modern engine bay aesthetics
• Direct replacement lower shell for FAST LSXR intake manifold systems
• Compatible with cathedral port LS cylinder heads (LS1, LS2, LS6, LQ4, LQ9)

The LSXR series represents FAST's commitment to cutting-edge intake manifold technology, combining race-proven design with modern materials engineering. The polymer construction not only reduces overall weight but also provides better thermal insulation than aluminum, helping maintain denser intake charges for increased power output. This replacement lower shell allows racers and enthusiasts to refresh or repair their LSXR intake systems without replacing the entire assembly.