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"Constructed by hand utilizing 3/8" CNC cut exact-fit flanges, 1-3/4" aluminized steel primary tubes, and 3" collectors. Named " smooth Flow" as result of their construction having no sharp bends and very few welds. These headers are manufactured by the same folks that worked with GM to produce and supply the headers for the LS-1 engines in ASA racing series. Threaded oxygen sensor bungs come installed. These hand welded headers are bent as opposed to being welded piece by piece, as result of this you will find better exhaust efficiency over other systems. The system includes Jet-Hot ceramic coated Smooth-Flo headers with emission hookup, Hi-Flo cats and hi-performance x-pipe made of 304 stainless steel, both of which are larger than stock at 2 3/4" for better flow. Fits up with stainless band clamps for no-leak tight seal which also eliminates the struggle with flanges and gaskets. Melrose Smooth-Flo header and Hi-Flo Cat system alone has produced excellent horsepower gains of up to 38 HP and torque gains of up to 45 ft/lbs. Catalytic convertors meet Federal EPA and California ARB requirements. Random Technology catalytic converters have been proven to flow higher than many mufflers. We recommend installing a Hi-Perf air filter with this system for optimum performance. Bolt-on installation. (Dyno results were gathered from our customers at independent dyno shops) Call for pricing on our race headers without the emission tubes installed."
They're lying. There are no high flow cats which are EPA or CARB certified for 2005 vehicles, none, nada, zilch. The regs only allow exact factory replacements to be installed, and then only if the OEM parts are damaged beyond repair, for the first 80,000 miles. On top of that, they're RT cats, which have a long and sordid history of premature failure.
Note too that while they brag about the X pipe being stainless, the headers themselves are "aluminized steel", in other words, cheap cheezy muffler pipe. They also try to make it sound like bending the pipes makes them special, rather than the standard way headers are made by everyone except the backyard tyro.
They might be Ok cheapy $200 headers, but they're certainly not worth what they're asking for them. The BS they pour into that one paragraph you quoted is so extreme that I'd be nudging them with a ten foot pole rather than bolting them onto my car.
They're lying............they're certainly not worth what they're asking for them. The BS they pour into that one paragraph you quoted is so extreme that I'd be nudging them with a ten foot pole rather than bolting them onto my car.
From: If you don't weigh in you don't wrestle Road America
I've installed three of there systems on C5's and they installed great power numbers for just the headers were about 15hp and 20 lb ft of torque (before a retune). I'm assuming there numbers are with a tune, two of the cars we installed the headers on run HPDE's at various tracks and the headers are really standing up to the heat, just a little bit of coloring at the collectors but besides that the headers still look new. As far as fit and finish go I think that Melrose makes great products, I would like to see stainless used instead of aluminized but I believe there thinking is that coated stainless would be overkill. I've delt with them in the past and have always been happy.