Flowmaster Exhaust Advice
Thread Starter
Burning Brakes
Joined: Feb 2004
Posts: 866
Likes: 1
From: Minnesota
Flowmaster Exhaust Advice
Hi All!
I have seen recent threads about a Flowmaster Catback system and would like some clarification.
Here is my application. I would like to install a Flowmaster II catback system on my C4. The pre-cats will stay along with adding the FM resonator. The hundred dollar question is this.....Does anyone have this very same application and how loud is the interior noise. Can't you tell this is my first go at replacing the OEM exhaust system?!?!?! Thanks to all!!!!!!!
I have seen recent threads about a Flowmaster Catback system and would like some clarification.
Here is my application. I would like to install a Flowmaster II catback system on my C4. The pre-cats will stay along with adding the FM resonator. The hundred dollar question is this.....Does anyone have this very same application and how loud is the interior noise. Can't you tell this is my first go at replacing the OEM exhaust system?!?!?! Thanks to all!!!!!!!
Team Owner
Joined: Sep 2003
Posts: 25,295
Likes: 4
From: I'm the walkin dude I can see all of the world...
St. Jude Donor '03
Re: Flowmaster Exhaust Advice (40th Anniversary Guy)
Flowmaster resonation is bad.
Magnaflow resonation is bad, Tips look good, sounds neato.
Corsa has no resonation problems.
Here's the answer:
Go with Corsa if you care about resonation.
Go with flowmaster if you care about money.
I think they are both good but If I'm going to spend a bunch on an exhaust system it will be a corsa.
Let the disagreements begin. :lol:
[Modified by VictorRussell'92, 3:03 PM 3/1/2004]
Magnaflow resonation is bad, Tips look good, sounds neato.
Corsa has no resonation problems.
Here's the answer:
Go with Corsa if you care about resonation.
Go with flowmaster if you care about money.
I think they are both good but If I'm going to spend a bunch on an exhaust system it will be a corsa.
Let the disagreements begin. :lol:
[Modified by VictorRussell'92, 3:03 PM 3/1/2004]
Race Director
Joined: Jan 2002
Posts: 12,261
Likes: 85
From: O'Fallon Missouri
Re: Flowmaster Exhaust Advice (40th Anniversary Guy)
The interior noise is not bad at all with the Flowmaster Force II cat-back system. The Flow's make a Corvette sound like it should, powerful.
Instructor
Joined: Jan 2000
Posts: 132
Likes: 0
From: Ogden, Utah
Re: Flowmaster Exhaust Advice (40th Anniversary Guy)
I installed a set of Flowmaster Mufflers last year, and it sounds really nice at idle, but my wife hates it a cruise. It also has a lot of resonance inside at about 1000 to 1200 rpm. I have an automatic trans (2:59 ) rear end, very tall gears when driving around town I have to keep the revs up to keep it from causing resonance. Over 45 to 50 mph the resonace goes away. I am not happy with the Flowmasters, and should have gone with the Corsa's. Another Forum member told me not to go with Flowmasters but I did and now I willhave to re-install my old mufflers . :rolleyes:
Thread Starter
Burning Brakes
Joined: Feb 2004
Posts: 866
Likes: 1
From: Minnesota
Re: Flowmaster Exhaust Advice (40th Anniversary Guy)
To Bob Lapine:
Thanks for the input Bob. Now you have me worried!!!!!!!!! Are these just the Flowmaster mufflers or the entire cat-back system???????? With Resonator?
Thanks for the input Bob. Now you have me worried!!!!!!!!! Are these just the Flowmaster mufflers or the entire cat-back system???????? With Resonator?
Thread Starter
Burning Brakes
Joined: Feb 2004
Posts: 866
Likes: 1
From: Minnesota
Re: Flowmaster Exhaust Advice (Bob Lapine)
Bob,
Thanks for the advice. Was this just the Flowmaster mufflers or the entire cat-back system? I plan on keeping the front cats and using flow's resonator.
Thanks for the advice. Was this just the Flowmaster mufflers or the entire cat-back system? I plan on keeping the front cats and using flow's resonator.
Pro
Joined: Jan 2004
Posts: 626
Likes: 2
From: Nashville
Re: Flowmaster Exhaust Advice (40th Anniversary Guy)
I have seen the cat-back for $540 in Summit. But they are 2.5" and factory is 2.75". They claim 38hp for LT1 I doubt it and 70 for the ZR1??? But this would keep the stock intact if I ever wanted to go back to a quieter exhaust. How restrictive is the factory set-up?
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Racer
Joined: Oct 2001
Posts: 311
Likes: 2
From: Roseburg OR
Re: Flowmaster Exhaust Advice (40th Anniversary Guy)
I would recommend the Force 2 system. On my 90 I put on the the force 2 system for the LT1/4 and it is quieter at cruise than the stock system. Acceleration sounds good.
I think the bad Flowmaster rap is caused by the 40 series mufflers, they are way too loud for me.
I think the bad Flowmaster rap is caused by the 40 series mufflers, they are way too loud for me.
Le Mans Master
Joined: Oct 2002
Posts: 7,178
Likes: 1
From: Bahston Mass.
Re: Flowmaster Exhaust Advice (carson)
I would recommend the Force 2 system. On my 90 I put on the the force 2 system for the LT1/4 and it is quieter at cruise than the stock system. Acceleration sounds good.
I think the bad Flowmaster rap is caused by the 40 series mufflers, they are way too loud for me.
I think the bad Flowmaster rap is caused by the 40 series mufflers, they are way too loud for me.
Thread Starter
Burning Brakes
Joined: Feb 2004
Posts: 866
Likes: 1
From: Minnesota
Re: Flowmaster Exhaust Advice (carson)
Thanks for the info Carson. I've looked at just adding the Magnaflo mufflers, but realize the performance gain just isn't there with those VS Flowmaster Force II cat-back system.
Did you buy tips for yours? I'm having a hard time sourcing someone who sells tips for this specific system. Take care.
Did you buy tips for yours? I'm having a hard time sourcing someone who sells tips for this specific system. Take care.
Race Director
Joined: Jan 2002
Posts: 12,261
Likes: 85
From: O'Fallon Missouri
Re: Flowmaster Exhaust Advice (carson)
I would recommend the Force 2 system.
I think the bad Flowmaster rap is caused by the 40 series mufflers, they are way too loud for me.
I think the bad Flowmaster rap is caused by the 40 series mufflers, they are way too loud for me.
:iagree: There is very little interior resonance with the Force II system.
Safety Car
Joined: Feb 2003
Posts: 3,847
Likes: 95
From: Springfield MO
Re: Flowmaster Exhaust Advice (STL94LT1)
The interior noise is not bad at all with the Flowmaster Force II cat-back system. The Flow's make a Corvette sound like it should, powerful.
Drifting
Joined: Nov 2002
Posts: 1,365
Likes: 3
From: Huntsville AL
Re: Flowmaster Exhaust Advice (40th Anniversary Guy)
Flowmaster Force II cat-back and Flowmaster mufflers are two completely different animals.
The Force II system is tuned for use with the LT1/4 Corvettes and has minimal resonance. It was tuned to keep the resonance down on C4s.
The regular two or even three-chamber Flowmaster mufflers will make your ears bleed inside a C4. Eventually either you get used to it, or you switch to something else.
I think you'll be happy with the Force II system. :thumbs:
The Force II system is tuned for use with the LT1/4 Corvettes and has minimal resonance. It was tuned to keep the resonance down on C4s.
The regular two or even three-chamber Flowmaster mufflers will make your ears bleed inside a C4. Eventually either you get used to it, or you switch to something else.
I think you'll be happy with the Force II system. :thumbs:
