helty said:yeah, 4V parts are crazy.
wonder if my gf's mom would let me put a bigger turbo on her beetle?
01Steeda said:I have non ceramic Mac's.. couldnt be happier. no problems what so ever. it is alot of internet bs
They did NOT destroy a 4V motor, that is a the fault of the owner, he should've known better when you add L/T's without a tuneStang|ess said:Could be with where you live. No snow, no salt on the roads so it's less prone to start rusting.
If you do a search, slag destroyed some 4v motor, and they're notorious for burning oil on the 4v motors.
I'm not a shop, but I've been using mac for over 5 years (yeah i love the sound) but they suck on quality and rust, even the new ones01Steeda said:im sorry but i disagree. my local shop has been installing them on cars for years and has yet to have any issues with them. Most every stang around here has them and none have had a problem.
Stang|ess said:Could be with where you live. No snow, no salt on the roads so it's less prone to start rusting.
If you do a search, slag destroyed some 4v motor, and they're notorious for burning oil on the 4v motors.
or flooded ones01Steeda said:also , i dont have salt on the roads in the winter... its in the air year round. Saltwater is overlooked. no i dont go to the coast alot in my car, but when i do i see salt corroded cars everywhere.
Hello,
I've recently purchased a set of Ceramic coated long tube headers for my 2002 Mustang GT.
Shortly after purchasing them I began reading many reports of people having severe oil consumption (1 quart per 100 miles seems to be the reported average), severe blue smoke out of the tailpipe and engine damage. The reports claim that only the MAC long tube headers were installed and the smoking occurred almost immediately after installation.
Upon disassembly of the engine, many people have reported finding a fine "sand-like"substance in the oil as well as scoring in the cylinder walls. The result is, of course a ruined engine.
As I continued reading I had only become increasingly concerned that these weren't a "few crazy people who don't know what they are doing". These are people who know a thing or two regarding automobiles. Some of the individuals have had the headers professionally installed by speed shops and some have done the installation themselves. The results have been the same either way. Blue smoke and engine damage.
I am wondering, what can you tell me about this situation? Is MAC aware of this issue and has it been corrected? With the number of incidents occurring I am debating on whether or not to return the headers for another brand. I would rather not, as the MAC's I have now look to be high-quality pieces.
If I receive no response to this email I will assume that you have no guidance for me and I will be returning the MAC headers for another brand. This is my first MAC product I have bought and I would hate for it to be my last.
I await your response.
Thanks!!
Riley Foster
They smoke because there is no back pressure, most likely these guys are running off rd pipes. Its not the headers but the stock heads. They cannot handle the extra velocity and seep oil. The headers are actually doing there job very well, the high amount of velocity in the exhaust “quicker rev time” creates a ventura or a suction the oil seeps through the stock valves. I have a ls1 camaro 2001 I put the headers and off rd pipe on and I got blow by “too much velocity in the exhaust” and smoke came out my tail pipes. Vehicles are more prone with the air intake and off rd h pipes, I put my cats back on problem solved. This only occurred at 4500-6000 rpms wide open throttle. ITS NOT A HEADER ISSUE IT’S A FORD ISSUE. Ford designed the stock valves for the stock exhaust you run headers and off rd and you get smoke or oil consumption.
Exactly why i'm gonna be a little weiry about going with BBKhelty said:but they have that stupid crimp in 2 of the drivers side pipes
DSG40thGT said:I guess we'll have to custom fit an H onto some SLP Longtubes.
helty said:Or I could just trade up to a Mach or Kewbra and say F'k it
Stang|ess said:Noob gave you the cold shoulder
I'd stick with what's proven. Ask your pimp, jason, for some money and buy Bassani, or Hookers. Don't have to remove the passenger side to do tranny work
tomustang said:ban.t
tomustang said:4V>2V
tomustang said:They did NOT destroy a 4V motor, that is a the fault of the owner, he should've known better when you add L/T's without a tune
yeah, last time I switched out race pipes and cats I used my spare jack to raise the X as high as I could (while torqueing the bolts that connect the X and C/B) without causing a leak. worked out pretty good but now the cats still scrape on the slightest bump. Dont know why they had to make them round?csledd said:yeah im lowered and ive had my exhaust for over and year and maybe ive scraped like twice.. once was definately my fault too. the x in the x-pipe hangs lower than my headers do lol
helty said:yeah, last time I switched out race pipes and cats I used my spare jack to raise the X as high as I could (while torqueing the bolts that connect the X and C/B) without causing a leak. worked out pretty good but now the cats still scrape on the slightest bump. Dont know why they had to make them round?
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