.... these set up on a rev up engine:
1)
- Crawford Plenum
- Strup headers
- Crawford cats
- Nismo cat back
2)
- Crawford plenum
- Nismo R tune headers
- Crawford cats
- Nismo cat back

Which is the best.... and why?
After the installation i need to tune my ecu???
Thanks in advance

 

I'd do option #1. Nismo headers is alot of $$$ and will give similar gains to Strup. I'd also add an intake like the popcharger to the list.

after you add all of those mods you'll most likely be running lean, so a tune should be considered to get the full potential of your mods.

 

I think that each has been discussed a hundred times.

 

Setup 2. No matter what people here say, no header design is the same as Nismo. Those will cost $$ but will give better gains throughout the rpm band.

 

#1.

IF you have extra money then go with #2.

 

Thanx guys....