Morning all !
Should I scrap the stainless that has cracked again & go back to a standard cast Mani ? That is the question ! Or..... do i put my hand in my pocket & get a hand built stainless manifold created ?
I'm running Horshams' stage 2A map with all associated mods so circa 315bhp.
I've tried a couple of stainless mani's over the years and although this one has been on the car for some 8 years, its only done 5000 miles. I'm sick of having to take them off to repair for either a crack or a wound out stud.
It is probably the weekest part on my car from a reliability point of view.
So i suppose I'd like to know how much BHP a standard one can handle?
Have members ported them to aid flow ? And anything else i cant think of as I've just got up !
Thanks in advance,
Ben