I got a 95 gsr engine in an ek. Yesterday i finally thought i was finished until i went to bolt the headers on that came with the swap. My brother in law originally bought the swap and they gave him some dc headers with it. I go to bolt them up to my apexi n1 exaust and there too short. theres no cat just a straight pipe, not sure how short they are, if i force them i can almost get them around the donut gasket lol. I thought they were most likely from an ls but then i searched on here and people are posting that the gsr headers are 4-4.5 inches shorter than ls headers. not sure if there just misinformed but can someone help? im pretty sure i just need to order some gsr headers but can someone who isnt just going to post without knowing for sure help me out?
anyway i cranked the engine over finally even without the b pipe connected lol. just another headache preventing me from driving the car, help please

 

also based on experience is there any power difference between 4-1 headers and 4-2-1 headers? i would think the 4-1 have better power cause its a straight shot but seems like people charge more for the 4-2-1's . is that just cause there easier to install in 2 pieces or is there a power difference?

 

just to be clear, the exaust is a complete apexi system, all the bends line up, all the hooks line up. the headers i have now dont even line up to the 2 bolt mount bracket that runs off the block. like i said im pretty sure i have ls headers or something, but my main question is are gsr headers longer than ls headers?

it doesnt make sense to me that some poeple on here have posted that gsr headers are 4-4.5 inches shorter than the ls headers because theres nothing i could have added to my swap from another engine/car that would restrict the headers from fitting.

 

jus take your straight pipe to a muffler shop and have them extend it. As far as headers 4-2-1 generally make good mid range power while 4-1 headers make good top end power.

 

thanks for the input. i was thinking of having the pipe extended, someone at my job can do it for me. you just saved me some money, thanks

 

And you'll also need an O2 bung (2 if you're running obd2) welded into the test pipe, cuz GSR headers don't have O2 Bungs