*****Bone stock CLS55 with MBH Longtube headers Dyno Inside*****
Senior Member
Joined: Feb 2007
Posts: 463
Likes: 8
From: South Florida
2014 E63, Cobra replica, 68 Camaro, 66 Chevy II SS, Z4 BMW, Honda Element, Birel 125cc Shifter Kart.
Those are some damn fine looking headers and your guarantee is unheard of. But, I still wouldn't put headers on my car unless I also did the pulley, TB and a tune. Even then, I probably wouldn't because of the cost and the related issues all aftermarket headers have. That being leaks and stress cracks eventually, underhood heat and reduced access.
I know I'm playing devil's advocate here but my own personal experience on lots of cars doesn't support large HP gains with the addition of JUST headers.
I know I'm playing devil's advocate here but my own personal experience on lots of cars doesn't support large HP gains with the addition of JUST headers.
