Techtonics 16V (Audi 5 cyl 20v)intake valve (32mm, 7mm stem Undercut for High Flow). 12 cfm gains in low valve lifts and 6 cfm with high valve lifts. Black nitride treatment reduces friction, improves heat dissipation and Valve guide wear. Stem undercut to 6.5mm. (Will work in "ABF" cylinder heads (single groove retainers and keepers will be needed) Also can be used as std replacement.
$25.00
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Techtonics 16V (Audi 5 cyl 20v)oversized intake valve. 0.5mm larger than standard valve. 12 cfm gains in low valve lifts and 6 cfm with high valve lifts. Black nitride treatment reduces friction, improves heat dissipation and Valve guide wear. Stem undercut to 5.75mm. (Will work in "ABF" cylinder heads (single groove retainers and keepers will be needed)
$25.00
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Techtonics 16V (Audi 5 cyl 20v) oversized 34mm intake valve. 2mm larger than the standard valve. 15-20 cfm more flow than the standard valve. Black nitride treatment reduces friction, improves heat dissipation and Valve guide wear. Stem 7mm undercut to 6.5mm. Single groove. This valve works with std keepers, retainers, guides and stem seals. (valve seat available (109 161) (sold separate)
$24.49
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Techtonics/Supertech 16V (Audi 5 cyl 20v) oversized 34mm intake valve. 2mm larger than the standard valve. 20 cfm more flow than the standard valve. Black nitride treatment reduces friction, improves heat dissipation and Valve guide wear. Stem 5.5 undercut to 5.1mm. Use #109 225 valve guide, 109 137 Titanium retainer, 109 161 valve seat) 109121. Made by Supertech for Techtonics.
$30.00
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Inconel, stem undercut to 6.5mm, 28mm, Flat Face. VW 16v and Audi 5 cyl 20v. (Inconel alloy is a great for high temp use such as turbo/supercharged or high performance street with catalytic converters)
$30.00
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Inconel, stem undercut to 6.5mm, 28.5mm, VW 16v and Audi 5 cyl 20v. (Inconel alloy is a great for high temp use such as turbo/supercharged or high performance street with catalytic converters)
$30.00
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Sodium Filled Inconel, 7mm stem undercut to 6.5mm, 28.5mm, VW 16v and Audi 5 cyl 20v. (Sodium (Cooled) Filled Inconel alloy is a must for high temp use such as turbo/supercharged or high performance street with catalytic converters)
$44.00
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VW 16v and Audi 5 cyl 20v, Inconel, stem undercut to 6.5mm, Oversized, Dished, Lightweight. Will require larger seats. (Inconel alloy is a great for high temp use such as turbo/supercharged or high performance street with catalytic converters)
$31.00
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