Supertech Valve guide K series Intake 8 pack Honda Civic Si 11th Gen (2022+) It features a monotube damper

It features a monotube damper that is made out of a carbon seamless steel 52mm tube with a performance internal piston providing maximum damper response

This swelling causes a significant reduction in flow through the injector and therefore renders it unsuitable for use with MTBE oxygenated fuels

Peak/Recall

all specifications of BORLA® exhaust systems are tuned on a vehicle-by-vehicle basis for an optimum blend of performance and sound

The rings can be installed for an extra $100

Supertech Valve guide K series Intake 8 pack Honda Civic Si 11th Gen (2022+) It features a monotube damperFITS: 8th Gen Honda Civic 8th Gen Honda Civic Si 9th Gen Honda Civic 9th Gen Honda Civic Si Acura RSX 1st Gen Acura TSX 2nd Gen Acura TSX Supertech Valve Guides (8 Pack) are precision machined from high quality Magnesium Bronze material. These guides, in combination with low friction nitrated valves, provide the best solution for performance and durability. Specifications: 5. 5mm Exhaust Valve Guide 11. 04mm OD 44. 8mm Length Manganese Bronze