FLP Headers
Thread Starter
Staging Lane
Joined: Oct 2003
Posts: 90
Likes: 0
From: Roselle, IL
FLP Headers I am about to buy some used ones for cheap. I really wanted the LGs but at this price, its hard to pass up. Anyone have FLPs? Any issues? Anyone know what they weigh compared to the LGs? What gains can I expect with basically a stock car? Mods in sig.
TECH Addict
Joined: Nov 2001
Posts: 2,551
Likes: 0
From: St Louis, MO
My FLP's leaked from the day the came out of the box due to a bad weld. They recalled a bunch of sets about 6 months later but I didnt realize my pinhole leak was the same problem. I removed them and fixed it myself.
I have no idea how much they weigh, probably about the same.
I'd be interested to know how much you're getting them for. I have been thinking about selling my FLP's and stepping up to LG headers.
I have no idea how much they weigh, probably about the same.
I'd be interested to know how much you're getting them for. I have been thinking about selling my FLP's and stepping up to LG headers.
TECH Enthusiast
Joined: Aug 2003
Posts: 527
Likes: 0
Originally Posted by LSK
I am about to buy some used ones for cheap. I really wanted the LGs but at this price, its hard to pass up. Anyone have FLPs? Any issues? Anyone know what they weigh compared to the LGs? What gains can I expect with basically a stock car? Mods in sig.
TECH Enthusiast
Joined: Aug 2003
Posts: 527
Likes: 0
Originally Posted by LSK
I am about to buy some used ones for cheap. I really wanted the LGs but at this price, its hard to pass up. Anyone have FLPs? Any issues? Anyone know what they weigh compared to the LGs? What gains can I expect with basically a stock car? Mods in sig.
TECH Fanatic
Joined: Jan 2002
Posts: 1,471
Likes: 0
From: Houston, TX
I have them, no problems. If your worried about the heat on spark plug wire get some fire sleeves.
http://www.thunderracing.com/catalog...vid=7&pcid=198
http://www.thunderracing.com/catalog...vid=7&pcid=198
I have had them on my car for 2 years now and have had no problems with them at all.
Originally Posted by LSK
I am about to buy some used ones for cheap. I really wanted the LGs but at this price, its hard to pass up. Anyone have FLPs? Any issues? Anyone know what they weigh compared to the LGs? What gains can I expect with basically a stock car? Mods in sig.
Originally Posted by boos2
I have them, no problems. If your worried about the heat on spark plug wire get some fire sleeves.
http://www.thunderracing.com/catalog...vid=7&pcid=198
http://www.thunderracing.com/catalog...vid=7&pcid=198
The headers did work alright until we added a H/C to his car which give a higher exhaust temp. Trending Topics
Launching!
Joined: Dec 2001
Posts: 297
Likes: 0
From: ..
I've had FLP's on the car for about 18,000 miles..
I used heat soxs from the get go and have never had a problem.
TOns of corvette owners running FLP's without a problem and that includes "Black Magic" over at www.z06vette.com with a supercharger on top of his FRC..
Same with FCalmes whose got FLP's and heads and cam..
No problem there either.
I say go for it.
I used heat soxs from the get go and have never had a problem.
TOns of corvette owners running FLP's without a problem and that includes "Black Magic" over at www.z06vette.com with a supercharger on top of his FRC..
Same with FCalmes whose got FLP's and heads and cam..
No problem there either.
I say go for it.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?
Pouria Savadkouei
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
On The Tree
Joined: Nov 2001
Posts: 125
Likes: 0
From: Objects in mirror may disappear quickly!
I've had FLP headers on my '02 Z06 and my '03 Z06. They fit really nice , look good and sound awesome. The really nice thing about the FLP set-up is how easy it is to switch between off-road pipes and cats. It takes longer to jack my car up than it does to actually change the exhaust. 
I've seen 20-25 rwhp gains (w/off-road pipes) and I've heard of as much as 35 rwhp gains in regular C5's , due to the difference in factory exhaust systems. As for the #7 spark plug wire , it's nothing to worry about. I haven't heard too many people say anything about it being a problem. The wire looked very close on both of my cars so I just used a zip-tie around the wire and the coil backet. For my money , there isn't a better system out there.
I've seen 20-25 rwhp gains (w/off-road pipes) and I've heard of as much as 35 rwhp gains in regular C5's , due to the difference in factory exhaust systems. As for the #7 spark plug wire , it's nothing to worry about. I haven't heard too many people say anything about it being a problem. The wire looked very close on both of my cars so I just used a zip-tie around the wire and the coil backet. For my money , there isn't a better system out there. 
Thread Starter
Staging Lane
Joined: Oct 2003
Posts: 90
Likes: 0
From: Roselle, IL
Well the headers have been on the car now for little over a week. No spark plug problems yet. With the ZO6 mufflers, the car is very quiet when not on it and very exotic when on it. I cant wait to get to the track now...
TECH Enthusiast
Joined: Jul 2003
Posts: 507
Likes: 2
From: Ankeny, IA
I had my headers toast the #7 wire, but I just took off the stock boot protectors and threw them on my aftermarket wires. No problems after that. The headers make good power and are pretty easy to work with.
TECH Resident
Joined: Apr 2004
Posts: 870
Likes: 0
From: SugarLand Texas
Originally Posted by LSK
I am about to buy some used ones for cheap. I really wanted the LGs but at this price, its hard to pass up. Anyone have FLPs? Any issues? Anyone know what they weigh compared to the LGs? What gains can I expect with basically a stock car? Mods in sig.
If you need a nice set of kooks call the number below. They are having a GP right now.
