LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

true duals

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Old 03-24-2004, 12:49 AM
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true duals

i was thinkin about runnin true duals on my car and gettin rid of the flowmaster i have on it now. any picts or sound clips would be great. also what kind of mufflers would you recomend? i don't want it to go over my axle. anyone have any problems with it bottoming out? also how loud is it? any info would be great thanks. also how much would it cost? would i need an X pipe?
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Old 03-24-2004, 02:12 AM
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It is cheaper to get true duals than most catbacks. Most people use dynomax bullets that are about $35 a piece out of summit. The x-pipe cost about $100-150. And all pipe and install of everything is about $100-200. I paid under $350 for parts and labor for my true duals, and $300 for my Headers installed in case you where wondering. I used 2 1/2 inch instead of 3inch to keep the noise down and I think it is perfect. Had it almost a year and it is not annoying at all. Borla XR-1 are nice mufflers but are about $150 a piece and I did see flowmaster has a new round muffler but not sure on the price but they proably sound good. There is a problem with them scrapign but just watch what you are doing. My car is stock height in the picture. So I say go for it and dont look back. Page 4
http://www.cardomain.com/memberpage/245983/1
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Old 03-24-2004, 03:21 AM
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I have 2.5" true duals with bullets that dump before the axle. All together about $250.00 for everything from the collector back. There are pics on page 2 of the website in my sig.
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Old 03-24-2004, 05:36 AM
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I also went the Bullets route. 2.5" x pipe and piping into 3" Bullets. Cost me $210 for Bullets, x pipe, piping, and labor. I have turndowns before the axle. You can see some pictures on my cardomain site although I wasn't able to get any on the lift, but the pictures are still o.k.
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Old 03-24-2004, 09:42 AM
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is 2.5 inch enough? or will 3 inches just be rediculously loud? any hp gains with that extra half an inch? thanks for the picts and info.
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Old 03-24-2004, 09:45 AM
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Originally posted by fstenuf
is 2.5 inch enough? or will 3 inches just be rediculously loud? any hp gains with that extra half an inch? thanks for the picts and info.
Either will fine. I went with 2.5" pipe and then went up to 3" bullets. I didn't want full 3" exhaust. Might be overkill.
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Old 03-24-2004, 10:22 AM
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so i need 2.5 pipe(from headers to the X-pipe), and 2.5 inch X-pipe then 3 inch bullets?
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Old 03-24-2004, 12:22 PM
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2.5" true duals = 3.5" cat-back

3" true duals = 4" cat-back
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Old 03-24-2004, 12:27 PM
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Here is a video of my car. I've got 3" true duals w/o an h pipe or x pipe into 2 purple horny mufflers with 3" turndows.

Link

-Shannon
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Old 03-24-2004, 01:01 PM
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I was in the same situation you are in.

I went and bought Jet-Hot LT's. 2 1/2" Reducer, (2) 12'' Long 2 1/2" Bullet mufflers, and a 2 1/2'' turndown. Had a speed inc install it all. They did plugs and wires at the same time. And removed my AIR&EGR for me, and edited the pcm acordingly.

Car sounds and performs great. Here are some pics of the setup. Im going to probably try to get a sound clip this weeked. Wish me luck.





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Old 03-24-2004, 02:13 PM
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I am running dual spin tech mufflers with jet hot long tubes and an x pipe. It sounds awesome IMO. Will make the ford boys jealous have pics on my sitehttp://www.cardomain.com/memberpage/510562

check it out, oh they are regular mufflers not round
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Old 03-25-2004, 07:10 AM
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A couple of my vids in my sig. I went with 2.5 also. It will support well over 5-600hp and i have better ground clearance. Why not eh? I said to myself why go 3in if you dont need it.
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Old 03-25-2004, 09:48 AM
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so will i need to buy an Xpipe? or can a shop make one? i'd like to go the cheapest way possible. thanks for the videos and picts
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Old 03-25-2004, 09:57 AM
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so are bullets round mufflers or are bullets the brand name? i really don't want to have a big muffler like the borla XR-1 or whatever it was....just something smooth and sounds damn good, and a lil HP doesn't hurt either
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Old 03-25-2004, 10:03 AM
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Originally posted by fstenuf
so are bullets round mufflers or are bullets the brand name? i really don't want to have a big muffler like the borla XR-1 or whatever it was....just something smooth and sounds damn good, and a lil HP doesn't hurt either
You'll need either an X pipe or H pipe. The exhaust shop should be able to make one for you. You could run straight pipes out, but I dunno, I like the sound of my X pipe. Dynomax are the makers of Bullets. Dynomax Bullets are just round "mufflers" with nothing inside them. They are shaped like glasspacks. You'll get a little gain in HP and I guarantee it will sound "damn good".
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