![](/images/threads/icons/0.png)
Now all I have in my SR20ve is sr16 cams and SR16ecu tuned with Greddy emanage + a Pop Charger so you would say very mild 'bolt ons'
The existing exhaust is 60mm w/h is 2.36" (came from Japan with that).
I want a 4-1 header from GregV but it comes with 1.75", 2.38" collector but the rest of it (part with flex pipe that merges with rest of exhaust) 3". The 3" part is where have an issue because that will be leading into a much smaller 2.36" pipe. That is more than 0.5" step down. Is this workable. How will this affect the performance of the car?
I have stock header now.
And please don't tell me to go 3" to match the header. I MAY go 3 inch but not now. If I do other upgrades like cams I will go 3" but NOT now. 2.5" would have better but doesn't make sense to go from 60mm to 2.5" now either - 0.14" difference.
Again, I'm concerned about going from 3" to 2.36"
Spoke with Greg and he said it would be at least better than what I have but what do you guys think?
Peace
The existing exhaust is 60mm w/h is 2.36" (came from Japan with that).
I want a 4-1 header from GregV but it comes with 1.75", 2.38" collector but the rest of it (part with flex pipe that merges with rest of exhaust) 3". The 3" part is where have an issue because that will be leading into a much smaller 2.36" pipe. That is more than 0.5" step down. Is this workable. How will this affect the performance of the car?
I have stock header now.
And please don't tell me to go 3" to match the header. I MAY go 3 inch but not now. If I do other upgrades like cams I will go 3" but NOT now. 2.5" would have better but doesn't make sense to go from 60mm to 2.5" now either - 0.14" difference.
Again, I'm concerned about going from 3" to 2.36"
Spoke with Greg and he said it would be at least better than what I have but what do you guys think?
Peace