C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Flowmaster Force II on C4 '86

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Old 11-20-2005, 06:20 AM
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raymond86
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Default Flowmaster Force II on C4 '86

Hi Guys,

Does anybody here have experience with the relativly new Flowmaster Force II system on a C4? The claim that this system doesn't give as much resonance in the car as the previous systems did.
I'm looking for a system that is louder than stock, but inside the car it shouldn't be irritating...
I still have my Cat installed so it's only about the Y-pipe and 2 mufflers that are going to be replaced.
Thanx

Raymond
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Old 11-20-2005, 08:29 AM
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sami85L98
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It is defenitely louder than stock but i dont recommend if yoyr car is stock. I have headers, cam/head package and it is way louder but no resonance inside at all a very happy customer of Tpis Flomaster Force II and infact one guy is selling this on parts sale section. A very nice piece but expensive 600 bucks.
Old 11-20-2005, 08:57 AM
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RAGOVET
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St. Jude Donor '05
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I have them on mine and I love them. Just meaty enough to know you have some power but not annoying. Well worth the $$$ for the sound and potential extra HP.
Old 11-20-2005, 12:23 PM
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carson
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I put the Force 2 for the LT1 on my 90 L98, still have stock exhaust manifolds and no cats.

Sounds good, tire noise is louder than exhaust in 6th at 65-70, that used to be my resonance RPM with the stock system.

Required changing the mounting bolts on the rear end and LT1 hangers.

I think the 40 series mufflers on stock pipes gave the Fowmasters a bad rep for resonance.
Old 03-18-2018, 12:40 AM
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Mark A. Thomas
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Default Love my force ii

I just installed in my 86. Very mild, but nice.
Old 03-18-2018, 09:02 AM
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856SPEED
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The thread lives beyond the members..................

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