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Which one did you like better and for what reasons?
I like them both, Had the Flowmaster on the 91 from stock all the way to 500hp and it only got better sounding never any drone very nice at speed, I think they have more of a European sound. They now are on the 93 stock.
The Corsa took a bit to get used to the main reason for them was to get better flow after the mods. I first had then on with no cats sounded a bit tinny so I put cats on . They sound great more aggressive and old school. again no drone at speed but you do hear them top off windows down no issues caring on a conversation. WOT very loud you will hear it coming a block away... Love it
The fit of both systems is great had them welded up to get rid of the clams.
The long-since discontiunued Flowmaster Catback for late C4s was a great exhaust on a stock or near stock C4 ZR-1.
On Barney, my late-great '95 ZR-1, I had a "hybrid" exhaust system made of a mix of a Flowmaster cat back front section and resonator, stock 96 Grand Sport center section, a pair of Flomaster 50-series Delta-Flow mufflers and stock exhaust outlets. It worked very well with my 500-hp Automasters Street-Skinner engine package, so much so, that my system made more power than the standard Flowmaster system did on the same engine. V8 drone at highway speeds was noticeable, but livable. The sound at 6000-7000 rpm was freakin' awesome.
Interestingly, the article I wrote ages ago telling how I built the system is still on the web. CF rules prohibit me from posting a link, but if you search the I-net for: <Action Center Quietly Powerful C4 LT1/4/5 Exhaust> you'll likely find it.
Last edited by Hib Halverson; 01-07-2017 at 02:59 PM.
I had a 95 with headers and flowmaster exhaust and it really sounded good.
I'd recommend this, B&B with x pipe with a flapper mod for the muffs.
I like the design of the corsa muffs as they are the only ones that really baffle internally to kill the drone, but honesly with 4.10 gears and X pipe I don't get drone until 1500 or so and I don't drive the car that way with the cams.
The idea of bullet resonators will kill quite a bit of flow and not really eliminate the drone that well. The big pipes and muffs WILL drone unless properly baffled like the corsa or designed to eliminate drone.
Also keep in mind the "claims" of huge increases in power are pure BS.
You are not going to bolt on a 40+ hp increase with an exhaust system.
Headers are the largest gain and keeping the flow moving down stream with a good exhaust will "save" the HP but even dropping the exhaust won't give you as much HP as some vendors claim
....marketing specialists who enjoy smoking those funny cigarettes!
67 FT LBS! Really?
On the other hand, as said earlier, they have the aggressive sound thing down pat!, and at that price, not much of a risk!
Marty
Marty's skepticism is well placed. Marc Haibeck's dyno testing over the years on average showed about 12-15 HP and about the same torque increases for just a cat back exhaust system (Corsa, which generally created the biggest increases)--Bob.
My goals are 1) zero/super low drone, 2) increase in performance and 3) reasonable sound- (more American muscle than Jaguar).
My guy suggests taking out the stock system and putting in an "X" pipe immediately follow by "bullet" type resonators finished with Delta 40 mufflers.
Also, I did place my order for "the chip." from Marc Haibeck so I need to factor that into the equation.
I have an appointment tentatively scheduled for next Wednesday so I have time to tweak.
What do you all think? Will this accomplish my goals?
I have pretty much what you described above. Starting with Watson long tube headers, followed by 3" high flow cats, followed by an X pipe, followed by 3" bullet mufflers, followed by Flowmaster 40s.
Its a bit loud and it drones... however, it sounds good imho and that is all that matters to me. I have received many compliments over the years for the sound it produces.
I have replaced the bullet mufflers one time due to the way they transformed in terms of sound. Over time they made it sound more raspy and lost some of the deepness in tone.
Upon inspection when off the car the sound deadening material was still intact, so, I don't know what really happened to them. The new bullets restored the lower tone and the muscle car sound was back.
The system from the headers back weighs in at about 63 lbs and is 3" steel all the way. If I were to build another one I would probably replace the Flowmasters 40s with something different.
One other possibility would be to eliminate the mufflers all together and put in two 3" bullets in their place.
I suspect it would error on the to loud side by a good margin, however, it would be interesting to check it out for confirmation.
It seems the 3" bullets take out a little bit of the higher frequencies and therefor produce the lower tone. The sound at idle is a real classy sound as it sits right now.
Which one did you like better and for what reasons?
Hello, I have an opportunity to get the original flowmaster force II catback with no mufflers. Do you know if the original mufflers to this system are the same or similar to the 50 series Delta Flow that Flowmaster currently sells?
It will be interesting what it is like with two bullets rather than one center resonator. Right now I am leaning towards the Borla center resonator and mufflers. Or the 93-95 zr1 system put on our 90.
Pete's car has bullet resonators on an older B&B system. I wouldn't say it has no drone by a long shot...
My 90 has a cat back B&B with the X-pipe. LOTS of drone! It is directly from the X-pipe. I like the sound from my system from the rear or outside the car but from around 2500-3500 RPMS (highway cruising speeds) it drones terribly. Bad enough that I can't listen to the radio. Does anybody have any experience with trying to use boom mat or something of that nature to kill the noise?
My 90 had Jeal headers and Flowmaster exhaust. Very little drone and sounded great. If Flowmaster brought that system back in 304 stainless, like the B&B and Corsa, I wouldn't hesitate to buy it.
Is anyone running a B&B Fusion exhaust on their ZR-1? How do those work and sound?
My 90 had Jeal headers and Flowmaster exhaust. Very little drone and sounded great. If Flowmaster brought that system back in 304 stainless, like the B&B and Corsa, I wouldn't hesitate to buy it.
Is anyone running a B&B Fusion exhaust on their ZR-1? How do those work and sound?
the fusion looks like a nice setup although I haven't heard it yet.
I was talking to them at carlisle and hoped to hear it on a zr1 but I did hear some z06 and c7s with the system and liked it
it has a flapper system in the tail pipe for croozin
I bought a set of flapper tail pipes off a c6 z06 and may try that setup on my existing b&b as the new stuff is pricey
12-24-2016, 06:44 PM
