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Discussion Starter · #1 ·
I am going to replace my stock exaust system. Starting from the stock header I have: Pre-muffler (Not a catalytic convertor) and then resonator and then regular muffler. I don't want the Pre frikkin muffler in my system. Is there anything out there that will bolt up to my stock header that is worth getting??? Thanks for your help..
 

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Discussion Starter · #2 ·
Responses??????

> I am going to replace my stock exaust
> system. Starting from the stock header I
> have: Pre-muffler (Not a catalytic
> convertor) and then resonator and then
> regular muffler. I don't want the Pre
> frikkin muffler in my system. Is there
> anything out there that will bolt up to my
> stock header that is worth getting??? Thanks
> for your help..
 

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Re: Response

Gee Gramps - I thought patience came with age.
I have a '77 with catalytic converter and a muffler - no pre-muffler - never had it. Talked with owner of Rising Sun Performance in Ft. worth and he feels that you can run an L28 with a 21/2
exhaust and just a muffler - as long as you use the right muffler. I'd find a reputable muffler shop that has a guy working in it at least your age and see what they would recommend. I know I intend to deal with a local shop when I do the conversion rather than a mail order situation.
 

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Discussion Starter · #4 ·
Re: Response

> Gee Gramps - I thought patience came with
> age.

Sorry. I guess at my age every breath might be the last.. I just want my Z to kick ass untill the day they pry the steering wheel from my hands.. I love it.. Hope they give the Z to my best car nut friend when I go though..
 

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Discussion Starter · #5 ·
Re: Response

> Sorry. I guess at my age every breath might
> be the last.. I just want my Z to kick ass
> untill the day they pry the steering wheel
> from my hands.. I love it.. Hope they give
> the Z to my best car nut friend when I go
> though..

My pipe was so rusted I cut it off in front of the premuffler and got a local muffler shop to install a whole new pipe from there back without the premuffler. I use a dynomax super turbo muffler at the end. Sam 75 280z
 

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Re: Response

HA! So you want loud.I did,so I ordered A header
from JC Whitney in Lassale IL.I got rit of that rusty leaky pre muffler replaced all the rest of the pipe with 2 1/4 inch pipe.NO MUFFLER,just A 4 inch round baffled tip from Monza/Pacesetter.Whole project cost,Header$125
Pipe$30,EX tip$40,Labor$50 Total$245
Performance,the torque band pulls into a higher RPM now that means I`m getting more speed in each gear now,I dont have to upshift to keep in my power range.My exhaust is not for everyone its deep crackling loud and definately leaves most mustang owners with tails between their legs.You dont need fat pipe to get flow just A less restricting path.And mine is straight through.
Have fun with whatever you do. JIM
 

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Discussion Starter · #7 ·
Re: Response

> HA! So you want loud.I did,so I ordered A
> header
> from JC Whitney in Lassale IL.I got rit of
> that rusty leaky pre muffler replaced all
> the rest of the pipe with 2 1/4 inch pipe.NO
> MUFFLER,just A 4 inch round baffled tip from
> Monza/Pacesetter.Whole project
> cost,Header$125
> Pipe$30,EX tip$40,Labor$50 Total$245
> Performance,the torque band pulls into a
> higher RPM now that means I`m getting more
> speed in each gear now,I dont have to
> upshift to keep in my power range.My exhaust
> is not for everyone its deep crackling loud
> and definately leaves most mustang owners
> with tails between their legs.You dont need
> fat pipe to get flow just A less restricting
> path.And mine is straight through.
> Have fun with whatever you do. JIM
Actually this has been very well tested on the dynomometer. You do need a 2.5 exhaust with as straight a path to a terminal muffler as you can. Now the problem for doing this simply is that the stock exhaust manifold dumps three into two so you have to do one of two things. You can cut the existing head tube while it is still two tubes and ovalize a 2.5 tube and weld it on. Or the proper and more difficult way would be to fabricate a flange that takes the place of the bolted up head tube. Now some will put a glass pack in where the premuffler or cat was to tone it down a bit. That is alright, each of us has his own needs. I personally like a quieter car that growls and snarls only when asked to. I suggest a Borla muffler. Flowmasters actually cost 1HP on the dyno at the top end. This will yeild as much HP as a header with the same system (without any other mods)Rob
 

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Re: Response

Lot of the Zs can put a horse tail between Mustangs legs. My silent 280zxt can smoke 8 out of ten mustangs. I took my z to the tracks. And race my Bosses 5.0 mustang. I got a problem now I got a very Pissed Boss now. Tell u one thing Z are the Best for a inline 6.
 

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Discussion Starter · #9 ·
Re: Response

> Actually this has been very well tested on
> the dynomometer. You do need a 2.5
> exhaust with as straight a path to a
> terminal muffler as you can. Now the problem
> for doing this simply is that the stock
> exhaust manifold dumps three into two so you
> have to do one of two things. You can cut
> the existing head tube while it is still two
> tubes and ovalize a 2.5
> tube and weld it on. Or the proper and more
> difficult way would be to fabricate a flange
> that takes the place of the bolted up head
> tube. Now some will put a glass pack in
> where the premuffler or cat was to tone it
> down a bit. That is alright, each of us has
> his own needs. I personally like a quieter
> car that growls and snarls only when asked
> to. I suggest a Borla muffler. Flowmasters
> actually cost 1HP on the dyno at the top
> end. This will yeild as much HP as a header
> with the same system (without any other
> mods)Rob
What my local muffler shop did for me was take off exhuast system from head pipe back, Cut old exhuast about 6-10 inchs from head pipe welded on new 2.5 pipes back till you get to the quiet turbo muffler them put on a Meg's chrome tip. Total cost i think was $160.00 What a differance it made, And it's got a low growl till I put my foot into it then it sounds really mean.
Anyway that my 2 1/2 cents. Good luck.
 

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Discussion Starter · #10 ·
Re: Response

> What my local muffler shop did for me was
> take off exhuast system from head pipe back,
> Cut old exhuast about 6-10 inchs from head
> pipe welded on new 2.5 pipes back till you
> get to the quiet turbo muffler them put on a
> Meg's chrome tip. Total cost i think was
> $160.00 What a differance it made, And it's
> got a low growl till I put my foot into it
> then it sounds really mean.
> Anyway that my 2 1/2 cents. Good luck.

My exhaust is real calm cruising can barely tell it is there. When you hit the gas it produces a nice deep tone that isn't very loud. At idle can't even hear the engine running. It's quieter than my friends 85 300zx. The nice thing about the turbo muffler it sounds good when accelerating and is quiet cruising. Major low end power improvement. Sam 75 280z
 
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