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-   -   New exhaust. Paradox signature series? (https://forums.maxperformanceinc.com/forums/showthread.php?t=882042)

Joog 09-05-2025 03:18 PM

New exhaust. Paradox signature series?
 
Looking for new exhaust on a 67 firebird and 67 gp convertible. Both mild builds on long branche manifolds.

Anyone ever use the Paradox brand signature series mufflers? I’ve seen them on Chevys and they sound good, but nothing on a Pontiac. I’d like some feedback and possibly a few videos.

78w72 09-06-2025 09:51 AM

Never heard of them, have you considered the other popular brands like dynomax or pypes etc? Thats what most guys on here go with.

But looking at their website they have 3 pages of sound clips to listen to on cars, no pontiacs but since every motor is built different, one guys car/engine will sound different than another one built differently, so cant really tell what they will sound like on your cars.

https://paradoxmuffler.com/sound-examples/

Cammer-6 09-06-2025 10:54 AM

On that note
What about spintech

72projectbird 09-06-2025 12:09 PM

They're basically a single chamber muffler in a bullet body. I'd have to imagine they'd sound pretty good.

Run em

Joog 09-06-2025 01:51 PM

Quote:

Originally Posted by 78w72 (Post 6580542)
Never heard of them, have you considered the other popular brands like dynomax or pypes etc? Thats what most guys on here go with.

But looking at their website they have 3 pages of sound clips to listen to on cars, no pontiacs but since every motor is built different, one guys car/engine will sound different than another one built differently, so cant really tell what they will sound like on your cars.

https://paradoxmuffler.com/sound-examples/

Dynomax is on the table. I have super turbos on my truck with an H pipe and they sound good. But I’d want to change up the type of dynomax if I did it on something else.

Joog 09-06-2025 01:54 PM

Quote:

Originally Posted by 72projectbird (Post 6580567)
They're basically a single chamber muffler in a bullet body. I'd have to imagine they'd sound pretty good.

Run em

Ive like them on the Chevys I’ve seen.

https://youtu.be/Ah1TssoOT6U?si=rMtXNnLEj28hvCHJ

78w72 09-06-2025 02:08 PM

Quote:

Originally Posted by Joog (Post 6580585)
Dynomax is on the table. I have super turbos on my truck with an H pipe and they sound good. But I’d want to change up the type of dynomax if I did it on something else.

Ultra-flo are the popular dynomax mufflers to use with higher power & will be louder than super turbos. If power is a concern over sound, the straight through style muffler of any brand with have the best flow, pypes race pro are the same straight through style.

Joog 09-06-2025 02:10 PM

Quote:

Originally Posted by 78w72 (Post 6580589)
Ultra-flo are the popular dynomax mufflers to use with higher power & will be louder than super turbos. If power is a concern over sound, the straight through style muffler of any brand with have the best flow, pypes race pro are the same straight through style.

Power isn’t a concern. Just want to know what people with the signature series think and if there’s a video. Just like to test what’s all out there before going out and getting one

72projectbird 09-06-2025 03:28 PM

Quote:

Originally Posted by Joog (Post 6580586)
Ive like them on the Chevys I’ve seen.

https://youtu.be/Ah1TssoOT6U?si=rMtXNnLEj28hvCHJ

They do sound good. Sounds similar to a Flowmaster 10, which is a single chamber in a rectangular body.

I love chambered mufflers. I'm more than willing to sacrifice a few hp for the sound compared to a true straight thru muffler.

Scarebird 09-06-2025 03:34 PM

A question is there drone at speed?

GOAT8U2 09-06-2025 06:29 PM

Joog video, I liked Dynomax better but that thick chug might not be what you want.

Borla Pro XS 3" are nice too.

Joog 09-06-2025 08:21 PM

Quote:

Originally Posted by GOAT8U2 (Post 6580620)
Joog video, I liked Dynomax better but that thick chug might not be what you want.

Borla Pro XS 3" are nice too.

I like both. Probably something deep for the gp with h pipe and the signature series for the firebird with x pipe

Joog 09-06-2025 08:23 PM

Quote:

Originally Posted by 72projectbird (Post 6580607)
They do sound good. Sounds similar to a Flowmaster 10, which is a single chamber in a rectangular body.

I love chambered mufflers. I'm more than willing to sacrifice a few hp for the sound compared to a true straight thru muffler.

Yup I like the depth too. Got a set of dynomax super turbos on my truck

Joog 03-23-2026 03:14 PM

Quote:

Originally Posted by Scarebird (Post 6580609)
A question is there drone at speed?

No drone at all.

Joog 03-23-2026 03:19 PM

1 Attachment(s)
Tacked into the firebird. I’ll make sure to make a sound clip video soon. I have never heard these on a Pontiac before. Only Chevys and Mopars

Joog 03-25-2026 09:11 AM

1 Attachment(s)
It is not a traditional straight through muffler, it has two half pipe shaped pieces that funnel exhaust gas into the baffling. This keeps the deep sound and no drone. They say at idle and acceleration it has a nice deep tone and when you're cruising it gets quiet.

Joog 04-12-2026 09:23 PM

Took two very quick videos. The signature series are better than anticipated! I’ll never go back to a Flowcrapper or Magnaflow. I’ve never heard a Pontiac with the Paradox Signature Series ever. I’ll make a full video on the whole exhaust soon, X pipe with cutouts to these signature series.

Startup and idle:
https://youtu.be/EDpIQGyvy5c?si=6khUpqDmAg1kAWww

Few baby revs:
https://youtu.be/3n17jcedZIw?si=-nn4omROwqlNUGqf


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