Upgrade from older s300 to the new s300 V3 Model-1-Civic-88-91(EF) Piston domes are designed for

Piston domes are designed for optimal quench during the compression/ combustion cycle

• 62mm inducer compressor wheel

All performance or racing components must be inspected regularly for wear

Our design keeps the oxygen sensor as close to the original position as possible to help ensure consistent readings

Upgrade from older s300 to the new s300 V3 Model-1-Civic-88-91(EF) Piston domes are designed forIf you have an older version of Hondata's s300 and would like to Upgrade to the Version 3 all you need to do is fill out this form , Print it and send it to Hondata along with your ECU containing your older S300. We will send Hondata your Purchase order and your S300 will be upgraded to V3. (S300's must be in working order or they will be returned) *PRICE INCLUDES OVERNIGHT RETURN SHIPPING FROM HONDATA Hondata s300V3 Upgrade Form Click Here