Dwindling Selection of Cat-Backs - Page 3 - Chevy Impala SS Forum
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post #21 of 33 (permalink) Old 02-09-2017, 07:51 PM
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Yeah I'm still kicking. LOL I don't get on here as much as I use to.

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post #22 of 33 (permalink) Old 02-10-2017, 04:58 PM
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exhaust

Hi guys.Ibhave Dans Quad-1 headers with a full stainless steel exhaust on my 96 SS.I had Dan put bungs in each exhaust if I want to put AFR gauges on it or if I bring it to a dyno to get tuned they can plug right in.
I believe you get what u pay for.He was great for me as he listened to what I wanted.The Quality is amazing and fit and finish is up there too.
Paul.

1996 ss 396 lt-4 competition longblock golen engines.custom hood,bumpers,spoiler,20\"billet specialties wheels.3.73.speedtech performance upper and rustic lower control arms.power performance motorsports frontend.body bushings,frame and floorpan painted.tce 14\" 6-piston front kit wit 4-piston 13\"kit in rear.
stainless quad-1 headers w/3" stainless exhaust.
fully painted undercarriage,w stainless bolts everywhere.
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post #23 of 33 (permalink) Old 02-12-2017, 12:47 AM
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Quote:
Originally Posted by Clear Image Auto (Dan) View Post
Yeah I'm still kicking. LOL I don't get on here as much as I use to.
Congrats on the "shout-out" in this months Super Chevy "Time for the shoehorn" article!

On the subject of cat-backs, I just installed a Summit cat-back today SUM-680028. The fit was good. Each car fits slightly differently and I did have to trim 2 1/2" from the driver's side intermediate pipe. The mufflers are quite a bit quieter than the Hooker Aero Chambers I took off.

Jim
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post #24 of 33 (permalink) Old 02-13-2017, 11:26 PM
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Congrats on the "shout-out" in this months Super Chevy "Time for the shoehorn" article!.......
x2 on that!

KW

1996 BBB SS, 398ci Solid Roller LT4


1995 DCM SS, LS3 w/Custom CAI, V-max 90mm TB, TSP CNC Ported Heads, Lingenfelter GT1-1 cam, Headman Mid-length Headers, 2 1/2" cat-back, 3200 Circle-D TC, 3.42 gears (for now) -- 450 HP/400 TQ To The Wheels


2014 Chevy SS; 429ci LS3 -- 508HP, 455TQ @ the wheels....After Break-in Dyno & Track Results Pending

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post #25 of 33 (permalink) Old 02-14-2017, 09:34 PM
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Walker/Dynamax on RockAuto

Most, if not all the parts on that Dynamax chart can also be found at RockAuto. You just have to put the part numbers in to the part number search box, rather than finding them thru the 94-96 Impala SS link. Then use the RockAuto discount.

I have used all of the Walker/Dynamax parts on my exhaust with a pair of Flowmaster 50's for about 7 years now and I like the sound of my exhaust. You many need to move to a different muffler for more noise or sound. Just make sure you get the inlet and outlet set right for the pipes and in 2.5".

I know this is an old post, but this is still good info I have not seen before.

'96 DCM - K&N, tinted windows, Hotchkis lowering springs, Bilsteins, Air Lift bags, tubular trailing arms, Corvette engine dress and aluminum valve covers, TBI bypass, air pump delete, PCMforLess, Transgo, Mezierre w/ Harness, Flowmaster 50s & Walker catback w/ Resonators, PF brakes, 275x40x17 Goodyear Assymetrics, hidden hitch, 80/100 lamps w/ harness, Pioneer amps, Infinity speakers w/ EDI 6.5" subs - Repainted DCM Aug '12
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post #26 of 33 (permalink) Old 02-15-2017, 08:51 AM Thread Starter
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Quote:
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The dynomax stuff is what I'm planning on running. ....


Dynomax 17749 Aluminized Super Turbo Muffler Oval 4 25 in x 9 75 In | eBay


Quote:
Originally Posted by 91ss View Post
The 17749 is that I run on the 91. ....
Gents,
For y'all running these, can you weigh in on any change over an extended period of time with these muffs that include (potentially erodible) sound deadening fiberglass in the design?

Manufacturer Part Number:

17749
Manufacturer:
Dynomax
Description:

Super Turbo; Muffler
Features:
Eliminates Turbulence
Large Internal Flow Tubes Improve Exhaust Flow
Exclusive Patented Flow Director Design Channels E
Fiberglass Matting Tech To Absorb Unwanted Interio
Large Internal Flow Tubes Reduce Backpressure
Dyno Proven To Flow Up To 700 SCFM/Support Up To 6
Maintains A Mellow Performance Tone
Proudly Manufactured In The USA

\'96SS SOB: SSRI, Herter Tune, Tri-Y II, SLP SS, 3000 Edge, F/HO bars, METCO extendeds and CV MMC, Bilsteins, currently Vredestein Ultrac Sessanta (315/35 rear)
\'96FWB BUW-Butt Ugly White: SS Bars, METCO LCAs, Koni Reds, PowerTrax No-Slip
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post #27 of 33 (permalink) Old 02-15-2017, 10:33 AM
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I ran them for 12 years and only issue was the rear pipe connection rusted but otherwise they were fine. I replaced them with SpinTech Sportsman XL's (chambered muffler)

\'96 BBB 383/T-56
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post #28 of 33 (permalink) Old 02-15-2017, 01:47 PM
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I've gotten great life out of these too. Better than factory for a change.

Just checked records. The first 17749 lasted 6 years when I replaced it with another 17749.

Started getting louder but turned out to be the reused dynomax OTA pipe from 3 years prior to that was rotting out at the muffler outlet. So 9 years easy for the muffler/OTA combo. So I'd say no noticeable change in sound until the rotted pipe. But I also run the dynomax resonator to quiet it down some more. So the rotted pipe change was exaggerated.
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post #29 of 33 (permalink) Old 02-17-2017, 03:09 PM
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I never did end up using those, went with a complete setup from Dan. However I'm thinking of experimenting with different combos of mufflers, resonators on or off, etc to see if I can get it perfect. I also found that dynomax makes a full stainless steel version of their super turbo mufflers, but I don't have a part number handy, just something to be aware of if you're looking for rust prevention.

Something witty.
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post #30 of 33 (permalink) Old 02-27-2017, 10:11 PM
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I keep hearing about the "Super Chevy" article with my products. I honestly haven't seen it yet. I guess I need to pick up a copy. Thanks for letting me know.

We are also thinking about making our own mufflers. 304 stainless ovals would probably be the first. We already do our own resonators.

Clear Image Automotive (425)251-0329
Headers, exhaust & intake systems
dan.ferraro@clearimageautomotive.com
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