Product Overview
Billet plenum spacer for Cosworth YB.
These fit all Cosworth Sierra and Escort engines.
We supply these to the top tuners in the country.
Available in 10mm, 14mm, or 17mm, please select size when ordering
These will improve performance by raising plenum volume and lowering charge temps.
Any questions please contact us and check out our other items for a full range of replacement and aftermarket Ford parts.
