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-   -   Exhaust idle notes (https://forums.maxperformanceinc.com/forums/showthread.php?t=873891)

MidnightAuto 05-22-2024 09:02 PM

Exhaust idle notes
 
Thought this might be helpful to those contemplating exhaust set up. My cars evolution.


Initial set up. ram air manifolds, 2.25 pipe, rattler mufflers. Tail pipes out rear. 60916 crower cam and 421 ho heads
https://youtu.be/usxSPokW0fs?feature=shared


Initial upgrade. Ram air manifolds, 2.25 pipes, dynomax ultraflows. Tail pipes side exhaust. Crower 60919 and kre d port heads.
https://youtu.be/fC30rf5CCM0?si=GgrHDyM9RYW4Uu7j


Most recent upgrade. Doug’s headers, 3 inch pipe, Sonoma’s ultraflows, x pipe, side tailpipe exit. 60919, kre d port. https://youtu.be/FlMAkukTOmE?feature=shared


Puttsing around the new exhaust is much deeper sounding and you can hear the cam
More at idle.

While there are some other winter upgrades making it hard to isolate- the car is running a lot faster with the new exhaust set up. I was torn in doing it- read a lot about headers vs rar manifolds. I had mandrel turn downs with the 2.25 too. But no question the new exhaust set up was worth it.

4dblnkldude 05-22-2024 09:47 PM

All sound good!! But I like the third video best.

GtoFM 05-22-2024 11:04 PM

My Mama told me nothin' good happens after midnight but Midnight, you changed that! Well done!

64speed 05-23-2024 04:24 AM

Your last setup is exact same as mine except mines run out the back. I love the sound!

64speed 05-23-2024 04:47 AM

https://youtube.com/shorts/tFebY_Tq3...9mSAuHfpbht6N5

MidnightAuto 05-23-2024 08:16 AM

Thanks guys. 64 speed love your ride and yes sounds very similar. Great license plate too.!

Holeshot71 05-23-2024 08:40 AM

Most recent upgrade. Doug’s headers, 3 inch pipe, Sonoma’s ultraflows, x pipe, side tailpipe exit. 60919, kre d port. https://youtu.be/FlMAkukTOmE?feature=shared

X2 on the 3rd video! What are the mufflers? Sonoma’s ??

MidnightAuto 05-23-2024 10:05 AM

Ha. I saw that typo. Autocorrect converted “dynomax” into Sonoma. Go figure…

kingbuzzo 05-23-2024 11:56 AM

Wow, I wouldn't be tempted at the lights with that sound!

napster 05-23-2024 12:47 PM

https://www.youtube.com/watch?v=GYMaDAeOO3g&t=98s

MidnightAuto 05-23-2024 07:58 PM

Very nice Napster! Sounds bigger than a 60919

Holeshot71 05-24-2024 06:29 AM

Quote:

Originally Posted by MidnightAuto (Post 6505179)
Ha. I saw that typo. Autocorrect converted “dynomax” into Sonoma. Go figure…

Well at least it was close..

pontiacs-r-us 05-24-2024 07:40 AM

Sounds great…I’m a long time fan of dynomax mufflers… curious what size case are your ultra flows? I’m about to buy some for my 65… I’m a lil on fence whether to use welded case ultra flows,or there turbos …

MidnightAuto 05-24-2024 08:15 AM

They are the smaller case and are the welded version…

MidnightAuto 05-24-2024 08:15 AM

They are the smaller case and are the welded version…

napster 05-24-2024 01:02 PM

Quote:

Originally Posted by MidnightAuto (Post 6505313)
Very nice Napster! Sounds bigger than a 60919

Thanks. Not bigger by much. XE288HR 236/242 @110LSA.


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