does anyone know if this will give me any gains there is one here local for sale ap2 mugen header on ap1 i also have k&n fipk intake and t1r 70r also picking up a kpro to tune on

 

I asked a similar question in the past (AP1 header on AP2), I didn't get any concrete answers with data though.

https://www.s2ki.com/forums/index.php?showt...&#entry17975364

 

afaik ap1 and ap2 mugen header or stock are the same

 

thanks for the help i think i'm just going to play it safe and pick up a hytech

 

i bought mugen header for ap1 AND FITS MY aP2 perfectly no problems.

 

^I believe both headers fit all model years. Have you dynoed with the mugen AP1 header? What are your thoughts?

 

There are definitely some changes. From the Japanese Hyper Rev Magazine, as translated by ///KM:

"Mugen AP1 and AP2 headers, and describes that the AP2 version was developed specifically for the AP2. Using the AP1 version as a base, they altered the length between the exhaust ports and the collector to optimize it for the 2.2L engine. Guess that's it. Mugen site describes the same thing."

https://www.s2ki.com/forums/index.php?showt...post&p=18110648

My question was whether or not a Mugen AP1 header would give any gains on an AP2. revin_9k, was wondering the opposite (Mugen AP2 on AP1).