Originally Posted by NH8991
Yep, Delta 1000 grind. No problems, slightly more valvetrain noise if you have sensitive hearing, but most people probably wouldn't even notice, the EJ253 is noisy enough as it is
With aftermarket EL headers and an open source tune for 91 octane, grin factor is definitely increased
What kind of power gains or what kind of power is it making with those mods?