EXHAUST PIX and some more disCUSSion... - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

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Old 05-26-2003, 08:57 AM   #11
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Thanks for the help! I just ordered the muffler! Pretty good price! Would you think muffler shops would give me a hard time installing it since it'* not OEM?
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Old 05-26-2003, 11:10 AM   #12
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Its probably a little late now but did you check the Flowmaster mufflers out? I recently got a custom system put on and one of my buddies with a V6 3800 Camaro has the Magnaflo. i thought it was a little to farty for me. The flwmaster has a mean growl at idle or low RPMs. The 80 series has a true crossflo in it to deliver the equal amount of exhaust to both tips.

I have custom bent 2.5 pipe from downpipe back, MAgnaflow HiFlo cat, no resonator, then to flowmaster. i am very happy with the sound.
you can here it here: http://www.fred.net/noelsy/pipes.MPG

Pictures of it are on CarDomain PG 3. htttp://www.cardomain.com/id/nytro67

Good luck with your choices, i would love to hear what your creation is going to sound like....
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Old 05-26-2003, 05:15 PM   #13
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Alright I thought I was done asking exhaust questions but had more. I feel pretty comfortable with the Magnflow muffler. As long as its a low growling noise at idle and consistent throughout the rpm.

In terms of Hi-flow CATS, could I go with basically any or will some also contribute to the sound of the exhaust system all together? I don't want to find out after everything'* welded on that the sound is bad. That would not be good
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Old 05-26-2003, 05:22 PM   #14
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Ive had 2 differant brand Hi-Flow Cat on my car and they sound basicly the same more or less . I dont think you should worrie as long as it is high flow.
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Old 05-26-2003, 09:09 PM   #15
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Agreed, its mostly the mufflers & tips that give you the unique sound. get a hi flo cat, none are made for our car so you'll need a universal. The objective is the least amount of restriction for the cat.
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Old 05-26-2003, 09:56 PM   #16
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Bus! Nice job!

That'* a really clean install. How'* the power really FEEL? I'm with Nytro for personal preference on sound, so I'll probably be going with the flowmaster, but now you've got me re-thinking the stock tips.......
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Old 05-26-2003, 10:20 PM   #17
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Bus, YEah that is schweet! One thing for sure the magnaflow looks nicer then the flowmaster.
those tips you got are very nice. Cant wait to hear it! those Camaro tips would look really sharp too. They would fit right in the cutouts in our bumper like it was made for it. When im done with everything else and im bored, im gonna switch over to them. I wonder how they would affect the sound, maybe give me a little more back pressure? farty?
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Old 05-27-2003, 12:28 AM   #18
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Thanks for the positive feedback.
I can feel a little bit of power increase, but, not much.
It just seems smoother all through the power range. I LIKE THAT.

The tips were 12" long to begin with.
The guy had to lop off the hookup section right up to the dual tips.
Had I known what I do now, I would have had those deflectors installed at that point.
Since the gases make roughly a 90-degree turn outta the muffler, they're pullin' to the outside of the tips. Hence the outer portion being darker.

The exhuast cutouts in the valance panel had to be trimmed slightly to accomodate the size of the parts.
At the upper inside of the cutout, about 1/2" of material in the shape of an eyebrow was removed, with the thickest part at the top and closing down to a point at the bottom of the cutout.
I'm thankful he tucked the muffler up where it is, as opposed to hanging it down lower, which he thought about, where it would be more visible. It'* fine where it is.
It'* Stainless Steel, as are the tips. I can always climb UNDER the car to ogle the muffler. I didn't really want that part sticking out. He guessed right there.
The guy did a superb and innovative job.

Shop carefully. Take measurements. Plan where you want to sink your money into the system to get the desired results...Think about the sound vs. backpressure desired. Costs. Labor.
I've been beating this horse to death and lovin' every minute of it, mistakes included.
I did as much as I could, but didn't know the finer details of the actual installation techniques, so, the Pro'* did it right.

I've listened to a lot of these 3800'* with and without cats or resonators or resonator tips and different brands/styles of mufflers and came to the conclusion that they can all exhibit the fart and pop sound.
My next step is to see if I can minimize or eliminate that characteristic of the exhaust tone.
A little more OT and I'll be at Walt'* for a plan.
I'm glad to have this place to talk it out and share ideas.
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Old 05-27-2003, 04:07 AM   #19
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i just had my flowmaster 80 series installed. very happy with the results and mostly the mean growl to it ! alot of backfire though. i think it'* cause i had my cat wacked off! i'm going to get a cherrybomb installed tommorrow instead of a highflow cat and see what happens. nice job on yours anyways. keep up the good work
Al
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Old 05-27-2003, 02:54 PM   #20
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Tell us how that Cherry Bomb idea works out when you get it done.
Sound different?
Lower?
Backfire subsided?
Quieter in the cabin?
I'm anxious to hear what you, uh, hear!
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