6.2 NA longtube headers worth it?



My friend had LT, pulley kit, OE, KNN and I made more WHP then he did.
looking back it is not worth unless you get them at a good price and do the install yourself.. You will need a lift for the headers and small hands but it is an easy DYI with correct tools and lift...
Generally speaking, you're looking at an increase of around 40whp through most of the rev range and around 25WTQ throughout. Seems quite worth it to me



From Kleemann Headers to KM Cats to 3" bolted to stock resonator and stock cat back...best sounding AMG I ever had...
Maybe that's why it sounded so good. Mine is catless and while my friends love it, I'm a little resentful of it. I think I'll definitely fit some 100 cell cats soon to bring back some of the AMG originality. It sounds a bit too old school for my liking.
Thanks for posting your power figures btw
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after about 2 yrs one cat came apart KM did not have them in stock so I gutted both in the end. sold the car to a friend. NO CEL until the batter went dead.Afte that CEL for no cats.. He tricked the ECU by installing O2 extenders....
If I had installed the xpipe I would gain some TQ but lower the top end RPM sweep.
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