Which Flowmaster?
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Freshman User
Joined: Jan 2002
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Which Flowmaster?
My muffler is junk, rusted beyond any semblance of Muffling, and I'd like to buy a Flowmaster. Since I'm a poor college student I'm hoping there is a Flowmaster that will bolt right up in the stock location. The truck is a 90 F-150 4x4, dual tank. Also, has anyone had experience with either the JBA or Edelbrock tubular headers? Is there a cheaper alternative? Thx-
ChopsMcgraw
ChopsMcgraw
Senior User
Joined: Mar 2002
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From: Palm Coast USA
Which Flowmaster?
Summit has a set of shory type headers for $159.00 that will fit your vehicle. I used these on my 1990 Bronco and they fit really good with no issues. They obviously will flow way better than the stock maniflods. Take a look for yourself at www.summitracing.com just my $.02 good luck. 
Thread Starter
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Freshman User
Joined: Jan 2002
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Which Flowmaster?
They bolted right up then? How much of a power gain did you notice, and what do you have for the rest of the exhaust system? Those summit headers sound like a godd deal, as long as they aren't of the heat n' beat variety-
ChopsMcgraw
ChopsMcgraw
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Joined: Jan 2000
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Which Flowmaster?
I have the 60 series flowmaster, and wish i went with the 40 or 50.. the 60 has the flowmaster sound to it, but it's waaay too quiet. I also have the Summit headers... they fit right up for me... even have the EGR fitting and came with all new stainless steel bolts. Summits headers are made by Flow-Tech. Other than that (exhaust wise), I have 3" pipe from the cat-back. my stock muffler literally fell out somewhere, and I needed new pipe to pass smog, so I went with a 3" tailpipe that the muffler shop had on-hand. the cats, intermediate pipe and collector are stock.
I noticed a little better pulling power going uphill, and passing on the freeway after getting the exhaust work done. didn't notice any difference off the line.
HTH- good luck
Chuck
I noticed a little better pulling power going uphill, and passing on the freeway after getting the exhaust work done. didn't notice any difference off the line.
HTH- good luck
Chuck
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Freshman User
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Which Flowmaster?
Which style inlet outlet did you use? I'm thinking about the 50 series, not sure which style though, trying to do it on a budget, buy the muffler myself and drop the truck off at an exhaust shop.
ChopsMcgraw
ChopsMcgraw
Laughing Gas
Joined: Nov 2001
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From: -
Which Flowmaster?
Unless you get long tube headers, or a tri-y style header don't bother. Shorty headers are usually for engine swap situations where space is at a premium. The longer tube design of the headers (and tri-y) allows the exhaust to be "drawn" out of the engine. This is why headers make a horsepower improvement. Granted shorties may open up the exhaust, but they will not make a noticable "seat of the pants" difference. The time, trouble and effort involved in swapping to shorties may not be worth it. Go with a freer flowing exhaust and a flowmaster 50 muffler and you should be happy. Combined with a K&N and you will see a noticable gain. Just my .02
