Change of exhaust easy or not?
26 May 2010, 08:32 PM
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Change of exhaust easy or not?
I got a v2 sti import, it has a stainless system which is decat 3 inch pipe straight through.
im not that happy with the noise it makes and was considering getting a replacement scorpion system which i believe is 2.5 inch straight through.
Will it need remapping if i change it? im running an Apexi ecu and a 20g turbo
im not that happy with the noise it makes and was considering getting a replacement scorpion system which i believe is 2.5 inch straight through.
Will it need remapping if i change it? im running an Apexi ecu and a 20g turbo
26 May 2010, 11:14 PM
#5
Yes it will
As you will be restricting the exhaust flow out of the engine. (more backpressure)
You will need it remaped and you might see a backward step in performance.
If you want it sound better
Your best plan is to keep the existing 3in downpipe and center section and change the back box. If you go this route you will change the sound and will not need a remap.
Steve
Just re read you post. By straight through. Do you mean a complete one piece exhaust or decatted
As you will be restricting the exhaust flow out of the engine. (more backpressure)
You will need it remaped and you might see a backward step in performance.
If you want it sound better
Your best plan is to keep the existing 3in downpipe and center section and change the back box. If you go this route you will change the sound and will not need a remap.
Steve
Just re read you post. By straight through. Do you mean a complete one piece exhaust or decatted
Last edited by Steve Whitehorn; 26 May 2010 at 11:16 PM.
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