Doug's Headers + 2.5" Flowmaster Exhaust INSTALL - 72 Chevelle

We install Doug's 1 5/8 x 3" headers and Flowmaster 2.5" H pipe onto Tyler's 1972 Chevelle Malibu 383
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[@gthompson8464]

The “yeah!” Was amazing haha

[@ChevelleFan70]

You guys need a shorty/header spark plug socket that has a hex on the outside. Combined with a flex-head Gearwrench, great tool combo for plugs with headers.

[@robertwest3093]

I wasn't expecting to see stock cast iron manifolds on a 383! I bet you that engine was suffocating. Can't imagine how much power y'all found!

[@bluecollarhotrods9781]

Too early to tell, but I assume it will need some carburetor tuning now. It's most likely lean up top now that it can breathe. Love the colors, nearly identical exterior wise to my 72 SS 454.

[@SS454LS6]

I agree. We did pull a couple of plugs, they actually looked pretty good. But I do suspect tuning is required.

[@72Z15SS]

Nice car, but I noticed your upper rear control arm bushing is Gone on the passenger side! Ya might want to take care of that.. 👍 Be safe

[@SS454LS6]

add it to the list haha. Old cars always need something. Thanks

[@ghaasl78]

I love it! I’d get rid of that clear fuel filter close to the manifold, though. They look cool, but, it’s a fire waiting to happen. Great car!

[@SS454LS6]

It is on the list

[@Justin-bz1dp]

​@@SS454LS6hi

[@RZK1966]

I’d be curious as to how the paint held up over time?

[@DadsOleGarage-jz3hw]

NICE AWESOME SOUND

[@bobjannotti3453]

Looks like you need some upper A frame bushings,you should get more clearance after that

[@Keese19]

Crusing doing around 55 in the country you think people can hear this exhaust a good ways away?

[@SS454LS6]

I would say no, but "a good ways" is very relative.

[@Keese19]

@@SS454LS6 maybe 100 yards away you think people can hear it?

[@SS454LS6]

@@Keese19 probably. They'd hear a throaty rumble, not an obnoxious roar... unless you go full throttle. Of course power and compression will have an impact. 800 hp 14:1 engine will be a lot louder than a 300 hp 9:1 engine.

[@Keese19]

@@SS454LS6 thanks that’s what my grandad is looking for he has an 350 sbc In his 83 c10 and wanted an exhaust with a deep sound to it

[@greggwilson8055]

Fix that fuel pump bolt..I’m freaking out….ah…..

[@drptp5017]

I bet he cant even hear a difference 😂😂

[@twgarage-terrywatson1672]

Sounds great. Where do you Dyno your cars at?

[@SS454LS6]

Last several times Ive gone it's been at Silver Maple's outside of Spruce Grove.

[@robertwest3093]

A 15.0 @ 90 with a 383? Is he still running the stock 2.56 or 2.73 rear gears?

[@SS454LS6]

I'm not sure what gear it has. 3.31 at the tallest.

[@tinnelledwards6895]

I put an electric pump in the tank!!!