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LT5 exhaust

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Old 03-05-2010, 06:25 PM
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61LS6
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Default LT5 exhaust

I am installing a LT5 in a SWC with Stainless longtube headers. Please help me with choosing 3in mufflers that will sound great.
Thanks, Bill
Old 03-05-2010, 06:32 PM
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LT5 Doc
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Forget the mufflers and go with straight pipe. I have it on both of my ZR-1s and love it!
Old 03-05-2010, 07:02 PM
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A1990
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Most go with B&B or Corsa. Corsa's are not 3".
Old 03-05-2010, 07:43 PM
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Originally Posted by A1990
Most go with B&B or Corsa. Corsa's are not 3".
But I like Corsa regardless of size (see my sig)
Old 03-05-2010, 08:06 PM
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Originally Posted by LT5 Doc
Forget the mufflers and go with straight pipe. I have it on both of my ZR-1s and love it!
Whadja say, Doc???

LS6, your only real option w/ 3" is B&B. It has a deep sound w/ this setup & makes the power. BE PREPARED FOR RESONANCE...

If you want a more exotic sound & don't mind 2 1/2" & an aluminized system, the Flowmaster system sounds fantastic w/ headers--I actually like the sound much more than my B&B setup.
The ideal setup IMO is the looks/flow & quality of the B&B w/ the sound of the Flowmasters--no such beast though!

I personally do not like the Corsas--headers or not...
Old 03-05-2010, 08:50 PM
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glass slipper
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A '63 split window coupe deserves a proper set of side pipes...have a custom 4" system made with chambered inserts for a nice mellow sound.

PS Watch your legs when getting out though unless you can fit some covers over it.
Old 03-05-2010, 10:47 PM
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Dominic Sorresso
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Take a serious look at the LT-4 Magnaflow #16837. Complete SS system with 4" tips, Xpipe and resonator. Sound is deep but it tames the dreaded 1600rpm drone. I can have a conversation at cruise.
Old 03-06-2010, 08:46 AM
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Aurora40
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Originally Posted by GTB/ZR-1
LS6, your only real option w/ 3" is B&B.
Doesn't the B&B have 2.5" mufflers and resonator?

I think the Magnaflow system above is the only "real" 3" system available. And it is the cheapest of the SS systems. It's just too bad it's so ugly.
Old 03-06-2010, 09:59 AM
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Originally Posted by Aurora40
Doesn't the B&B have 2.5" mufflers and resonator?
Not mine... I got my system back in '96--it was some sort of early or prototype system--3" all the way through.

You are correct abt necking down to 2.5" w/ the B&B, but 3" everywhere else.

I didn't know abt that MF system--doesn't look to shabby to me...
Old 03-06-2010, 11:49 PM
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Dominic Sorresso
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Originally Posted by GTB/ZR-1
Not mine... I got my system back in '96--it was some sort of early or prototype system--3" all the way through.

You are correct abt necking down to 2.5" w/ the B&B, but 3" everywhere else.

I didn't know abt that MF system--doesn't look to shabby to me...
Not shabby at all. Actually pretty damn nice IMO. Beauty is in eye of beholder. I had B+B system on mine before MF.
Old 03-07-2010, 12:08 AM
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Originally Posted by Dominic Sorresso
Take a serious look at the LT-4 Magnaflow #16837. Complete SS system with 4" tips, Xpipe and resonator. Sound is deep but it tames the dreaded 1600rpm drone. I can have a conversation at cruise.
Before you waste your money with this Magnacrap system, read this:

http://forums.corvetteforum.com/c4-g...your-mind.html
Old 03-07-2010, 08:59 AM
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I stand corrected, apparently the Magnaflow is not dual 3" all the way either...
Old 03-07-2010, 10:53 AM
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very interesting the findings that were shown . i wonder how that mixing chamber/resonator effects the power of the exhaust .the exhaust my guy came up with seems more awsome all the time . if i hadnt seen the results on both the dyno and track i would have cried .when i told him the results at the track he just smiled like a cat that caught the mouse . plus the upside was he did the whole job for 800. i will have a bunch of exhausts for sale soon as i clean them up
Old 03-07-2010, 07:10 PM
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Dominic Sorresso
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My highest trap speed came at Byron last year with the MF exhaust in place. 118.6 with ported top end.
Old 03-07-2010, 08:08 PM
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timbradley26
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very nice trap speed , did you have drag radials? and stk gears or 410s. tire spin can elevate trap speed
Old 03-07-2010, 08:09 PM
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The latest Gen B&B systems are actually fairly quiet. First Gens made a hell of a racket though.
Old 03-07-2010, 08:24 PM
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glass slipper
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Everybody keeps posting about C4 exhaust systems...has anybody noticed he put an LT5 in a '63 Corvette and none of these systems will fit??? His post referred to a "SWC" which is a Split Window Coupe.

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Old 03-07-2010, 09:36 PM
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Dominic Sorresso
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Originally Posted by cuisinartvette
The latest Gen B&B systems are actually fairly quiet. First Gens made a hell of a racket though.
Originally Posted by timbradley26
very nice trap speed , did you have drag radials? and stk gears or 410s. tire spin can elevate trap speed
Stock gears and street tires. About 2mph faster than when I had B+B.
I would think tire spin would cause you to lose mph.
Old 03-08-2010, 01:09 AM
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no actually can gain one up to 1.5 mph more at the big end .what wheel spin does is actually make the track longer so the car will be higher up in the rpm range going thru the lights . that withstanding your mph is very good. are your heads ported or just the inj housings and plenum? is the magna flow system quiet? do you still have cabin drone?thanx for sharing
Old 03-08-2010, 06:47 AM
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Dominic Sorresso
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My own ported top end and tune. Heads stock.
Have always had tire spin going into 2nd gear. My 60' is in the 2.1-2.3 range and 1/8 mph between 87-91mph depending on launch and track.
No cabin drone at 1600-1800 rpm, nice mellow low bass note idle and cruise.

Last edited by Dominic Sorresso; 03-08-2010 at 06:53 AM.


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