Originally Posted by buffalobill
Is there a need to switch to either 'hotter' or 'cooler' heat-range spark plugs following the install of a header, cat-back and a short ram intake, or will the originals still be okay? And should the spark plugs' gap also remain the same as the original specs? Engine is an F23A (4 cyl Vtec) in an '02 Accord. Thanks.
You need to use the original plugs. Pull one out, cover the hole with a rag, and trot down to the parts store.
Here's another good idea- Buy a tube of Anti-seize compound and put a little on the threads. You might appreciate it in another 60k miles.
Did I mention use NGK plugs?