97 4.6L Mods
Post Fiend
Joined: May 2006
Posts: 10,007
Likes: 4
From: Central Florida
There's not a lot of bolt-ons beyond what you listed. If you already have the CAI, exh and tune, then headers, throttlebody, cam and port/polished heads are your next engine mods. Or you can just go right to a supercharger. However, there are other mods that will make your truck feel peppier. Gears, high stall torque converter, shift kit, nitrous, better shocks, good swaybars.....
Good luck.
Good luck.
Posting Guru
Joined: May 2006
Posts: 2,486
Likes: 0
From: Iowa
cutting the cats will almost gaurente(spelled wrong) a loss in bottom end... maybe tiny gain on top...
i suggest a good quality cat back exaust system that will give you small gain through out the power band.. not much...but way better sound...
i suggest a good quality cat back exaust system that will give you small gain through out the power band.. not much...but way better sound...
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Post Fiend
Joined: Jan 2006
Posts: 14,941
Likes: 4
From: North of Normal
My truck has to pass OBDII inspection so there's no way to get rid of the cats.I plan on doing a cat back system but I haven't found the muffler I wanted yet I don't want flowmasters something quieter.
Post Fiend
Joined: May 2006
Posts: 10,007
Likes: 4
From: Central Florida
Todays catalytic converters are much better than the offering of 80's and earily 90's. You should see only minimal differences in performance.
Corsa's mufflers sound quiet nice, as does borla. I've been a borla dealer for a long time, a few people have complained they are too quite. They are a good sleeper exhaust.
Corsa's mufflers sound quiet nice, as does borla. I've been a borla dealer for a long time, a few people have complained they are too quite. They are a good sleeper exhaust.
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Post Fiend
Joined: Jan 2006
Posts: 14,941
Likes: 4
From: North of Normal
Originally Posted by ReAX
Todays catalytic converters are much better than the offering of 80's and earily 90's. You should see only minimal differences in performance.
Corsa's mufflers sound quiet nice, as does borla. I've been a borla dealer for a long time, a few people have complained they are too quite. They are a good sleeper exhaust.
Corsa's mufflers sound quiet nice, as does borla. I've been a borla dealer for a long time, a few people have complained they are too quite. They are a good sleeper exhaust.
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Posting Guru
Joined: May 2006
Posts: 2,486
Likes: 0
From: Iowa
My Flowmaster 50 series is pretty quite... i cant even hear it when im going down the highway at all.... Only time i hear it is when i stomp on it...I really like the balance...Just somthing to think about cause the 40 series mufflers are much louder..
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Post Fiend
Joined: Jan 2006
Posts: 14,941
Likes: 4
From: North of Normal
Originally Posted by BURNSTOUGHFORD
My Flowmaster 50 series is pretty quite... i cant even hear it when im going down the highway at all.... Only time i hear it is when i stomp on it...I really like the balance...Just somthing to think about cause the 40 series mufflers are much louder..
Elder User
Joined: Mar 2007
Posts: 693
Likes: 1
From: SouthWest Ga.
I have the Flowmaster Force II catback system that has a series 50 muffler. Sounds good outside not to mention quiet enough to carry on a conversation in the truck even with the windows down. But when you get on it you dang sure know it. Picked it up from Auto Anything- good price and free shipping
More Turbo
Joined: Apr 2007
Posts: 562
Likes: 0
From: YYC
hmm well as long as i am now losing to much performance...my cats were cut when i bought the truck...the 02 sensors have been re tapped...and it has true dual exhaust...with some no name Flo-Pro mufflers....it is by no means quiet...its got some nice bark if you step on it...i would like it a little bit louder ..so maybe i will put Flowmaster 40's on...what about blue bottles..are those even still legal?
THNX
Duggy
THNX
Duggy