I am pretty sure they are made by Flowtech...
My son picked up a set for next to nothing, new in the box.
He was holding out for some better ones to come on the used market, but it didn't happen.
He has heard horror stories about poor fitment or tough install on these, but I'd like to hear from someone that has actually done it, not through the rumor mill.
Things I don't like just by looking at them, even if the install and fitment is perfect, are the o2 sensors in a single primary pipe, not the collector, and the old fashion flat flanges.
http://www.summitracing.com/parts/sum-g9030/overview/make/ford
These are the Flowtechs...
http://www.summitracing.com/parts/big-12104flt/media/images/make/ford
My son picked up a set for next to nothing, new in the box.
He was holding out for some better ones to come on the used market, but it didn't happen.
He has heard horror stories about poor fitment or tough install on these, but I'd like to hear from someone that has actually done it, not through the rumor mill.
Things I don't like just by looking at them, even if the install and fitment is perfect, are the o2 sensors in a single primary pipe, not the collector, and the old fashion flat flanges.
http://www.summitracing.com/parts/sum-g9030/overview/make/ford
These are the Flowtechs...
http://www.summitracing.com/parts/big-12104flt/media/images/make/ford