The latest manifold-and-runner design from FAST is designed to provide enthusiasts and racers with additional high-RPM power. New High HP intake runners from FAST are now available in a complete all-out race manifold package. Building upon the popular LSXR intake manifold, this new LSXRT version gives LS3 engines with rectangle-port cylinder heads even more plenum volume for all-out racing. Best suited for high-RPM race engines, the Race Manifold creates proven gains of over 30 horsepower over the FAST LS3 Street Manifold at high RPM. The raised 102mm throttle body location optimizes the larger, less restrictive High HP runner design, creating more power. It also clears truck drive accessories. Quick Facts Product: FAST LSXRT 102mm HP Runner Intake Manifold for LS3 Engines Part Number: #146105B (Full Manifold w/ Runners); #146070 (Runner Set Only) Street Price: $1,049.99 (Full Manifold) Features & Benefits: Proven high-rise design delivers gains of 30+ HP Feature larger plenum volume than LSXR High HP intake manifold Raised throttle body location to clear truck drive accessories Best suited to high-RPM race engines