Is wondering which is correct about headers?
https://ls1tech.com/forums/generatio...e-posting.html
B. Headers
What they are: there are 3 styles of headers for the ls1:
1) Shorties: Easy to install, small power gain
2) Mid-length: Not too small, but not so long as to scrape if your car is lowered
3) Long-tube: Biggest and best. Will maximize power as well as exhaust noise
- If you have an 00-02 car do not bother with shorties. They received a better-designed manifold and flow quite well actually for what they are. You will see minimal gain if any by switching to shorties. If you have a 98-99 car you'll gain some rwhp from shorties but it wont be much either.
- If you decide on shorties work your other mods around that aspect meaning if you decide for a future cam keep it small (220 duration or smaller).
- Mac Mid-lengths vs LT's. The whole Mid vs LT debate will continue to go on, I’ve learned macs can produce great numbers and are a viable option for alot of people.


