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Old 12-29-2006, 02:38 PM
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Default headers or exhaust

ive been thinking 4 awhile about getting the gmmg exhaust 4 my car. but then i was thinking maybe i should get headers to get the air out of my engine 1st? if i went with a pacesetter lts 3inch ory does the stock exhaust have good enough flow to have pretty good performance increase until i get a new exhaust, or would i be better off getting the exhaust 1st?
thanks
Old 12-29-2006, 02:47 PM
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Originally Posted by KW4life06
ive been thinking 4 awhile about getting the gmmg exhaust 4 my car. but then i was thinking maybe i should get headers to get the air out of my engine 1st? if i went with a pacesetter lts 3inch ory does the stock exhaust have good enough flow to have pretty good performance increase until i get a new exhaust, or would i be better off getting the exhaust 1st?
thanks

I'm in the process of installing Pacesetter LTs and ORY and I will just be putting a DynoMax Bullet on the end of the Ypipe and have a turndown on it.

You could always use your stock catback and put a cutout at the end of the y-pipe?

The GMMG exhaust is very expensive.
Old 12-29-2006, 05:08 PM
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ya it is expensive, but has a great sound good flow and looks good
Old 12-29-2006, 05:40 PM
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Originally Posted by jetlag
I'm in the process of installing Pacesetter LTs and ORY and I will just be putting a DynoMax Bullet on the end of the Ypipe and have a turndown on it.

You could always use your stock catback and put a cutout at the end of the y-pipe?

The GMMG exhaust is very expensive.
will be loud as hell. ive got the same setup with a 4x12 bullet and 4 inch turndown. wicked.
Old 12-29-2006, 05:49 PM
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You'll get hardly any gains from catback alone, but you'll get some pretty decent gains with the headers.

I haven't really heard of anyone running headers with the stock catback, well at least with fbodies. If you want the best sound, I'd say catback first, if you want the most power, I'd do headers with a cutout till you can afford your gmmg also.
Old 12-29-2006, 06:20 PM
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Originally Posted by Hype
if you want the most power, I'd do headers with a cutout till you can afford your gmmg also.
This is the best plan. If you don't want to spend the money for the catback now, just get a cutout for the mean time to get the most out of your headers. A manual cutout is cheap.
Old 12-29-2006, 06:27 PM
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headers+cutout ftw.
Old 12-29-2006, 11:07 PM
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I dont know how some people run with their exhaust dumped, it rattles everything and has a horrible drone inside. LT's, hi-flo cats and a nice catback ftw.
Old 12-29-2006, 11:40 PM
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Most people tend to get the catback first, then the headers. I got my GMMG first and had that on stock manifolds for a year then go the headers. You'll love the GMMG on stock manis/cats. I think get that first, then get the headers/catted Y.
Old 12-30-2006, 09:03 AM
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Originally Posted by SweeTbone
Most people tend to get the catback first, then the headers. I got my GMMG first and had that on stock manifolds for a year then go the headers. You'll love the GMMG on stock manis/cats. I think get that first, then get the headers/catted Y.
I agree with this comment. I would get the catback first which will produce small gains in performance, but when you do get LT's with ORY or catted you will see a nice step up in performance. If that is out of your price range for now then go with the cutouts. They are gonna be loud but you will be putting the most power to the wheels.
Old 12-30-2006, 09:21 AM
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Go with headers and the cut out. The GMMG exhaust does look well and sound good but I am all about the most bang for the buck.
Old 12-30-2006, 10:16 AM
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I have the Supermaxx headers and catted Y with the stock WS6 catback. It actually sounds pretty good. It's definately louder than stock. But not real loud. I kinda like it.
Old 01-02-2007, 02:10 PM
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GMMG is way overpriced compared to other catbacks, like Magnaflow...

But I would save your money for true duals. Get the headers and True Duals installed at the same time and it will be the best performance gain you can get from an exhaust.

Bassani makes a great kit that your exhaust guys assembles on the car. You will have more tq from True Duals than you would any ypipe combination.
Old 01-02-2007, 10:46 PM
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ya idk if i get some headers ory and a good flowing cat back like gmmg i think thatll b good enough improvements and flow until i get like to 500hp or so, which aint till awhile haha
Old 01-02-2007, 11:09 PM
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+1 headers and cutout- if the y is catted
Old 01-03-2007, 05:14 AM
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y would i want a catted Y i was just thinkin bout getting the pacesetter LT's and ORY
Old 01-03-2007, 08:27 AM
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Get LT's of your choice, not catted y-pipe of your choice, and yes cut-outs are cool but totally up to you. I know how loud the cars are with headers and full exhaust. If you don't like to be super loud all the time, and this is depending on your taste and exhaust brand choices and setup. If you want quieter exhaust but still throaty, run a muffler with your headers and do a dual electric cut out y-pipe so you can be real noisy whenever you want at the flip of a switch.
Old 01-03-2007, 02:30 PM
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wait? wats the point of getting a catted y tho if my state wont check
Old 01-03-2007, 02:41 PM
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there you go...
Old 01-03-2007, 02:43 PM
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Originally Posted by KW4life06
wait? wats the point of getting a catted y tho if my state wont check
  • Cleaner Burning (less toxins into the air)
  • less gas smell
  • it isn't illegal


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