Professional Porting service for your TPI plenum that yields up to 10 horsepower

Complete Port work for a GM TPI upper plenum which includes opening up throttle body entry for your choice of 52mm, 58mm, or single large mono entry, removing EGR walls behind throttle body with additional blending. Reworking the IAC hump to a smaller shape for additional flow on the 85-88 plenums on the 89-92 the hump gets completely removed. Opening up all eight runner entries and matching them for any stock, large tube, or cast runners that your using. All wall/dividers in between runner entries get removed to allow the most air flow possible and to minimize turbulence at the runner entry. Reworking and radiusing all runner entries, countless hours have been spent on the flowbench and dyno to achieve the most effective runner entry. Runner entries are ported, shaped and angled in a way so that they catch the air to be directed into the runner


PRICE FOR FULL PLENUM PORT $349 INCLUDES 80 GRIT FINISH

TURN AROUND TIME 4-5 BUSINESS DAYS

CAN USE OWN PLENUM IF YOU DON'T HAVE OR WANT TO SHIP OUT

RADICAL PLENUM PORT WORK AVAILABLE TO YOUR HEART DESIRES REMOVING BOLT BOSSES LARGER SIAMESED RUNNER ENTRIES CUSTOM SET UP'S CALL OR EMAIL TO DISCUSS