Fiero Throttle Body Machining

Flow increase from  374cfm to 445cfm


The bore is machined 4mm over stock to 56mm w/a new polished custom plate fitted to the bore. 

The 1/2 shaft mod seen here consists of removing the front half of the throttle blade shaft and securing the plate with two low profile stainless steel screws to allow the most possible CFMs without compromising wall thickness. 

The 1/2 shaft is widely on many OEM throttle bodys and increases effective airflow over the stock shaft by nearly 2mm. 

Besides the machining operation, the throttle body will be cleaned, bead blasted, and painted with ceramic hi temp paint and new shaft felts will be installed.



Full Service throttle body machining & rebuild on your core- $150 includes priority mail return shpg (US)


Please package TB carefully and include your sensors for testing. Payment of $150 by cash or MO made out to Steve Monroe can be placed inside the pkg. USPS works cheaper/faster so mail your TB to me at 12625 SW 53 St Mustang OK 73064  Be sure to include a note with your mailing address and a way to contact you. 


Canadian Shipping - add  $40

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