I took the liberty to cut 4" out of a flowmaster muffler today. Just wondering if anyone has done this before and if so how does this sound like... I may use this, if not it will be for sale..

Joe

I have personally installed 3 different Flowmaster 80 series mufflers (F Body Style) in to 3 different Fieros, two 4 cyl's and one V6 with no fitment issues.

Why cut one up?

well, i placed one up in the fiero once and noticed that it was a little to long. I figured it would be difficult to get the angeled piping to curve coming out of the muffler and then to the tips. I thought if the stock muffler is 12" in length why not shorten the flowmwster muffler to 12" in length? By doing so I'll be able to get better exhaust flow with mandrel 2.5" tubing... I was able to cut one today, I took some pic's of the before I welded, but once it was finished the battery died in my camera. I'll have some pic's tomorrow when i go into work.

this first pic. is the muffler cut into three..



this second pic. is a view of the inside.



this third one is with the outer in place



the last two pic's is the final product, you can see by the last pic. the 4" piece removed.




I should have the picture tomorrow of the two parts welded together. Sorry my camera ram out of batter power.

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Street Legal Tuning.

Specializing in Fiero performance:
3800 swaps, custom Aluminum flywheels, Brakes, Engine's, Aftermarket Bolt on performance parts, used Fiero parts,

personal e-mail: joetrentadue@hotmail.com
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Don't they make these different lengths?

okay got the other picture of the finished product.

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Street Legal Tuning.

Specializing in Fiero performance:
3800 swaps, custom Aluminum flywheels, Brakes, Engine's, Aftermarket Bolt on performance parts, used Fiero parts,

personal e-mail: joetrentadue@hotmail.com
MSN : joetrentadue@hotmail.com

Work e-mail: teamracetech@hotmail.com
MSN: teamracetech@hotmail.com

They do come in different lengths but most of the shorter ones are single in on one side and the two out lets are on the other side making the tail pipes a pain to make. Dan

I have seen it done before... I cant really remember where.

I never thought of doing that. Good idea. I wonder what the sound "difference will be"?? Keep us posted on how that thing sounds.

I just removed the bottom portion of my trunk in my replica to use the OEM size F-body 80 series. (just to give it a bit more room.)

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I'm not driving too fast, . . . I'm flying too low.

Bump cause im interested in what a flowmaster (any flowmaster) exaust sounds like on a fiero. (for me a four cylinder) Thanks!

quote Originally posted by darkhorizon: I have seen it done before... I cant really remember where.

Ditto. Was it West Coast Fieros selling them?

Chris

that turned out really nice! Good work

quote Originally posted by SpeedDemon: Ditto. Was it West Coast Fieros selling them? Chris

If I recall, I thought I saw it in one of Loydes build threads, but I could be wrong.

So far the best sound is a Spintech. IMHO

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This photo illustrates how my Flow Master was modified to be package in basically stock position, without any changes to the trunk sheet metal. Also there is enough room between muffler and wall of trunk to place a thin flat 1/4 in stepped stainless steel "pocket", to hold a 16 in x 8 x 1/4 in thick heat shield material (fiber with one side alum face). You just screw the metal narrow pocket to the trunk wall and drop the pad inside from the top. This was done on my 88 GT, fits nicely between crade and trunk. The inlet was modified to 3 in. and the 2 1/2 in. outlets were fabricated to exit to stock trumpets location. The mandrel bends on both sides have a good even radius, believe it is a series 80, but not positive.


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Car History: //www.fiero.nl/forum/Forum1/HTML/025670.html

[This message has been edited by California Kid (edited 02-25-2008).]

I'll try to get around this week to install the muffler, I need to get a converter and a pair of tips.

Joe

------------------

Street Legal Tuning.

Specializing in Fiero performance:
3800 swaps, custom Aluminum flywheels, Brakes, Engine's, Aftermarket Bolt on performance parts, used Fiero parts,

personal e-mail: joetrentadue@hotmail.com
MSN : joetrentadue@hotmail.com

Work e-mail: teamracetech@hotmail.com
MSN: teamracetech@hotmail.com

did you ever install this setup if so how did it sound?

This Is To The T What i Did ..I Took A little Less Off The Muffler Though ..
Pic Taken With Cell Camera .. ..i Dont Know Why I Dont Carry My Digital Around With Me !!



You Can Kinda See The Muffler ..Sounds Alot Lower lol If That Makes Sense ...Guy At The Shop Said He Never Heard A Fiero Sound Like That .. I Also Had A New Pipe Put In ..2.5 Inch Pipe From The Y Pipe Down...

I Will Getting Getting A Custom Made Y Pipe As Well.. When I Finally Get Around To Getting My Headers Coated ..

EDIT: The Reason i Was Back At The Shop Was To Get The Tip Fixed lol ..Im Sure You Will All Notice

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"This car is so good looking its almost indecent. - AutoWeek on the new 1986 GT"

[This message has been edited by ZeroC (edited 08-20-2008).]

Do you have any sound clips or videos of yours? Also where'd you get those tips they look pretty good.

No Sound Clips Or Videos ..There From Pilot MotorSports..Had Them Sitting In My Garage For Years ..lol

I have a flow master 80 on my gt. The only thing we modified was the inlets and outlets we cut them back for a better curve going out to the tips. It sits up in the stock position without a problem. Its not even visible unless you stick you head under the car. It sounds really deep and not very 2.8 like at all. I've had at least 2 people yell light it up at me when going through a parking lot.

quote Originally posted by Macs86GT: I've had at least 2 people yell light it up at me when going through a parking lot.

thats because you were doing 80 and almost ran them over :P j/k