Hi guys, I have a S4 N/A and I'm going to ask a friend of mine to make me some new exhaust headers for the car. My question is, is engine-to-header flange, the same as the one used on the 12A engine?

I'm asking this because I already have a 12A flange mold. I appreciate your answers.

Thanks.

 

The 13B has thicker rotor housings then the 12B so it won't line up perfectly. But I believe people mismatch 13B/12A headers with a little bit fudging.

 

u know thats gonna get stupid loud if u take out the cat also

 

racingbeat sells just the flange for situations just like yours.

http://racingbeat.com/FRmazda2.htm

 

Mazdatrix's flanges are $4 cheaper than RB's for both the steel and stainless steel 13b header flanges.
http://mazdatrix.com/e3.htm

 

But is the 13B flange similar to the 12A? Because if it is, i could save some money...