: Anybody here have Dynomax Super Turbos on your Northstar?



1997BlackETC
04-07-07, 03:30 AM
I am thinking about hacking off the stock muffs and going with a pair of the Super Turbos and Z28 rectangular tips. Anybody done these muffs and did you notice any performance gain? I realize I probabley wont get too much performance out of it, but it would be nice to have a little more of a rumble when I get on it.

jadcock
04-07-07, 07:22 AM
Lots of people at Caddyinfo have the Dynomax Super Turbos. I understand they all like them.

CadillacSTS42005
04-07-07, 09:16 AM
lol
and u know wat the z/28 tips look like from my car!

fubar569
04-07-07, 12:52 PM
lol
and u know wat the z/28 tips look like from my car!


your exhaust focking rocks :thumbsup:
sounds like alot mroe than a northstar under there!

Submariner409
04-07-07, 09:32 PM
:confused: HMMMMM......lessee...If memory serves me correctly, the 1964 Chevy Corvair Monza Spyder was one of the first production turbocharged street cars, using a beefed up air cooled flat 6, 4-speed. There were no wastegate or blowoff provisions to limit boost, so power output was controlled by: 1. A single throat carburetor which went supersonic (airflow restriction) at around 6200 RPM, and 2. A single 3" "turbo" muffler which, internally, severely restricted exhaust gas flow at around the same RPM, limiting turbocharger rotor speed, thus boost. "Turbo" has become a buzzword in exhaust circles 'cause it sounds trick. If the muffler you contemplate was really "turbo" (i.e. exhaust restrictive) would you put it on your normally aspirated engine???

JimHare
04-08-07, 08:51 AM
Agree with Submariner there - the "Turbo" appellation has become quite overused in marketing circles, so I'd just ignore it.

I put the standard 20" Dynomax replacement muffs on my Eldo last June - the same length as the stock muffs, rather than the 14" that some people here have put on - which required an extention pipe or some other rigging from the muffler shop. Meineke did mine in about 30 minutes, they were an exact fit.

The D/S/Ts are a little quieter at idle, actually, but they start to 'burble' nicely at around 1500 RPM. Full throttle is also a bit throatier, but at some point the engine noise overcomes the exhaust note.

I doubt whether there is any performance gain noticeable except by a machine, and even there it would probably be very minimal.

1997BlackETC
04-08-07, 03:46 PM
Thanks for all the info everyone. Maybe I should sue the companies that call them Turbo mufflers as they contain no turbochargers, lol.

Anyhow, for now I think I am just going to stick with the stock muffs, it does sound nice even with those when I get on it and I dont like loud cars anyhow, so I guess I'd just be wasting money. If in the future the stock muffs go, I'll replace them with the dynomax ones as I'll need them anyhow at that point.

JimHare
04-09-07, 12:56 PM
Probably a smart move - I'm not saying I regret doing mine last year (at a total outlay of about $125.00 ) but I am a little disappointed that the exhaust note isn't just a teeny weeny bit 'rougher' at idle - I was hoping for something just a bit more agressive than the stock - and like I said, at idle they're actually QUIETER than stock...

1997BlackETC
04-09-07, 01:25 PM
I am kind of nervous in doing exhausts at this point as I spent around 300 bucks on my Colorado pickup truck for nothing. I did a flowmaster 40 series and hated it and ended up putting on a walker quiteflow which is about like stock. The 5 cylinder motor in that vehicle sounds horrible with anything other than stock in my opinion. Well at least the truck is a little lighter now as the stock looked like big oil drum and the quiteflow looks just like a regular muffler. When I had the flowmaster on everytime I hit a hill on the highway there was a real drone in the cab, it really interfered with the good sound system I have in the truck.

Submariner409
04-09-07, 06:18 PM
FWIW, 6 months ago I scored a CORSA system for my '02 STS at AutoPartsWarehouse for less than a grand, FED EX shipping free. The system is a work of art and is stupidly easy to install WITH A LIFT. Nice idle, dead quiet at cruise from 50 to 80, but all bets are off when you get aggressive with the accelerator: the system is made of mandrel bent straight pipes, all 2 1/2", muffler/resonator included, and uses several various sized holes burned in the pipe walls inside the muffler/resonators to "tune out" the cruise RPM drone. When exhaust gas flow increases past a certain point, there aren't any mufflers in the system. Using a flashlight you can see through the entire system from cat to tips.