Exhaust system 69 - Vintage Mustang Forums

 
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post #1 of 11 (permalink) Old 11-27-2012, 11:10 AM Thread Starter
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Exhaust system 69

I am looking to change the exhaust system of my 69 GT, manual trans, but the choice is not easy.
I heard there is clearance issues if we install long headers with the idler arm, or with the transmission linkage.

What could be the best solution?
Shortys? Which brand?

For the exhaust kit, I was thinking to use that:


17281 Mustang Flowmaster Dual Exhaust Kit American Thunder 2-1/2" With Stainless Steel Tips Coupe/Fastback V8 1967-1970 | CJ Pony Parts

Exhaust tip is bigger than the original exhaust tip, but I find them too small when compared with the car.

Any ideas are more than welcome
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post #2 of 11 (permalink) Old 11-27-2012, 02:00 PM
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That exhaust kit fits well and is easy to install. FPA long tube headers fit well with power steering and a manual transmission.

'69 Convertible 351w, 5-speed
69 Mach 1 351w 4-speed
'69 Mach 1 S-code, 4-speed
'70 Boss 302
'84 GT-350 5.0, 5-speed
'84 GT-350 Convertible
'04 Cobra
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post #3 of 11 (permalink) Old 11-27-2012, 02:47 PM Thread Starter
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Thanks dude!
No adjustment needed for it? I mean, enough space everywhere?
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post #4 of 11 (permalink) Old 11-27-2012, 07:14 PM
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Quote:
Originally Posted by SR69GT View Post
Thanks dude!
No adjustment needed for it? I mean, enough space everywhere?
You won't have any trouble with the exhaust kit. You will need a drop bracket for the power steering ram to run long tube headers.

'69 Convertible 351w, 5-speed
69 Mach 1 351w 4-speed
'69 Mach 1 S-code, 4-speed
'70 Boss 302
'84 GT-350 5.0, 5-speed
'84 GT-350 Convertible
'04 Cobra
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post #5 of 11 (permalink) Old 11-27-2012, 08:50 PM
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I have that same exhaust kit in my 70. I just have the version where the pipes tuck up behind the rear valance. It's a good quality kit with good hardware. I like the sound of it.

Here's what it sounds like in my car,


1970 Fastback (to be finished outside as a Boss 302 clone)
393 Windsor AFR 205 heads with 11.5:1 compression, Victor Jr. intake, solid roller cam with shaft mount roller rockers
Tremec TKO 5 Speed






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post #6 of 11 (permalink) Old 11-28-2012, 02:15 AM Thread Starter
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thanks for the answers!
I received an email from Stan (FPA).
I did a mistake for the link of the exhaust kit..it shows a 2.1/2", but the kit which I want to install is 2.5" . Not a big difference ^^
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post #7 of 11 (permalink) Old 11-28-2012, 09:41 AM
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I'm not sure what your saying, but 2.5 and 2 1/2 are the same thing.

This is just a suggestion. I'd recommend almost any muffler other than Flowmaster, unless you want a lot of interior noise.


1997 Cobra Convertible (stock)
1965 Mustang 302, T5, 9 Inch
http://forums.vintage-mustang.com/me...-100-1108.html
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post #8 of 11 (permalink) Old 11-28-2012, 11:34 AM Thread Starter
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Sorry my mistake...because in cj pony there was 2 different offer

17281 Mustang Flowmaster Dual Exhaust Kit American Thunder 2-1/2" With Stainless Steel Tips Coupe/Fastback V8 1967-1970 | CJ Pony Parts

817281 Mustang Flowmaster Exhaust Kit 2.5" Stainless Steel With 3" Tips Coupe/Fastback V8 1967-1970 | CJ Pony Parts

I thought that it was different...
If you install properly something for the acoustic attenuation should be good....?
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post #9 of 11 (permalink) Old 11-28-2012, 01:38 PM
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I can't comment on the exhaust kit but most long tube headers will require you to use a drop bracket for the power steering ram...When looking at headers make sure you read all of the little footnotes about what they will and won't fit..What engine are you running?


68 J code sprint, 408W
11.47@123.35mph in street trim.
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post #10 of 11 (permalink) Old 11-28-2012, 02:38 PM Thread Starter
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The engine is a 351windsor, with toploader 4

Here is the answer from Stan from FPA
You would get HD 3/8" std type flanges, full length max ground clearance 1 5/8" tubes out of HD 16 Ga. mild steel into 3" ball and socket collectors with street cone reducers, fasteners and gaskets
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post #11 of 11 (permalink) Old 11-28-2012, 05:10 PM
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Quote:
Originally Posted by SR69GT View Post
The engine is a 351windsor, with toploader 4

Here is the answer from Stan from FPA
You would get HD 3/8" std type flanges, full length max ground clearance 1 5/8" tubes out of HD 16 Ga. mild steel into 3" ball and socket collectors with street cone reducers, fasteners and gaskets
I have installed those headers in a Mach 1 with a 4-speed. The clutch adjustment is a little tight, but they fit and give excellent ground clearance. They are very well made.

'69 Convertible 351w, 5-speed
69 Mach 1 351w 4-speed
'69 Mach 1 S-code, 4-speed
'70 Boss 302
'84 GT-350 5.0, 5-speed
'84 GT-350 Convertible
'04 Cobra
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