Hello,
I have a 1991 accord with an f22a1 motor. I bought a Megan racing header and downpipe off craigslist brand new. Supposedly it was for my vehicle. Suprise Suprise its not. I know its too small for the 2.2 and too big to fit a 1.6 so... Best info I can give is the measurements and hope one of you guys can help. 4 bolt holes on top measuring 11 1/8 inches from edge of hole 1 to edge of hole 4. 5 bolt holes on bottom measure 13 1/2 inches from edge of 1st hole to edge of 5th hole. Roughly 2 7/8 in from top of top hole to bottom of bottom hole. Overall 13 7/8 inches wide total for header. Nothing has gone right since I bought this car and I'm hoping someone can help. Megan Racing puts the model numbers on the box and I don't have that so they couldn't help.