Jason B
Official Vendor
When you find out which part you need, let me know. I can get just about any brand item.
Interest in Custom built 4th gen V8 4.7 Doug Thorley Headers
- Thread starter brighton
- Start date
When you find out which part you need, let me know. I can get just about any brand item.
Shit, how about you just tell me what I need because I have no idea.
Jason B
Official Vendor
Lol, I'm not sure yet either. I think it's one universal sat after the headers that you could replace with a high flow to get more power. Anyone else, feel free to chime in.
Doug Thorley 03-04 headers ORDER LINK
Doug Thorley 05-09 headers ORDER LINK
Anyone else that wants to get in on this, now is the time. I'm not 100% sure how long Thorley is going to let me do this deal. I think another week or so maybe. After this deal is done, these headers will be $749! Again, my guy Mike at Thorley said these should ship around the 29th of this month. ALSO, I CAN THE MAGNAFLOW/FLOWMASTER CATS/MUFFLERS for anyone at great prices.
Call/text me at 717-319-2100 to order over the phone, or to order online with a Credit Card, click below
Doug Thorley 03-04 headers ORDER LINK
Doug Thorley 05-09 headers ORDER LINK
Doug Thorley 03-04 headers ORDER LINK
Doug Thorley 05-09 headers ORDER LINK
Anyone else that wants to get in on this, now is the time. I'm not 100% sure how long Thorley is going to let me do this deal. I think another week or so maybe. After this deal is done, these headers will be $749! Again, my guy Mike at Thorley said these should ship around the 29th of this month. ALSO, I CAN THE MAGNAFLOW/FLOWMASTER CATS/MUFFLERS for anyone at great prices.
Call/text me at 717-319-2100 to order over the phone, or to order online with a Credit Card, click below
Doug Thorley 03-04 headers ORDER LINK
Doug Thorley 05-09 headers ORDER LINK
Last edited:
????
Jason B
Official Vendor
Thanks t-man. Will those work with 03-04 and 05-09?
Doug Thorley 03-04 headers ORDER LINK
Doug Thorley 05-09 headers ORDER LINK
Anyone else that wants to get in on this, now is the time. I'm not 100% sure how long Thorley is going to let me do this deal. I think another week or so maybe. After this deal is done, these headers will be $749! Again, my guy Mike at Thorley said these should ship around the 29th of this month. ALSO, I CAN THE MAGNAFLOW/FLOWMASTER CATS/MUFFLERS for anyone at great prices.
Call/text me at 717-319-2100 to order over the phone, or to order online with a Credit Card, click below
Doug Thorley 03-04 headers ORDER LINK
Doug Thorley 05-09 headers ORDER LINK
Doug Thorley 03-04 headers ORDER LINK
Doug Thorley 05-09 headers ORDER LINK
Anyone else that wants to get in on this, now is the time. I'm not 100% sure how long Thorley is going to let me do this deal. I think another week or so maybe. After this deal is done, these headers will be $749! Again, my guy Mike at Thorley said these should ship around the 29th of this month. ALSO, I CAN THE MAGNAFLOW/FLOWMASTER CATS/MUFFLERS for anyone at great prices.
Call/text me at 717-319-2100 to order over the phone, or to order online with a Credit Card, click below
Doug Thorley 03-04 headers ORDER LINK
Doug Thorley 05-09 headers ORDER LINK
Last edited:
Yes they are just universal replacement parts for the 4.7. They go by displacement size. There are others out there, but this shows numbers for oe too since I know there's a couple OE snobs out there. Lol
Just got mine this morning. Look great. Have no idea when I'm going to find time/money to put them on though. I don't have a welder and that's one of the few things I don't know how to do. So I might have to just take it somewhere to be put on/welded. Which I know isn't going to be cheap. If i can find someone who has a welder I can borrow I might be able to at least tac weld them and then bring them somewhere to be finished up. Fedex also brought me my 2 graded comics signed by the cover artist (J Scott Campbell) and Stan Lee. 
All in all a nice day.
All in all a nice day.
LOL, that would be me making fun of myself.
Aren't the Magnaflows less restrictive than the OEM?
Those are damn sexy! All of it!Just got mine this morning. Look great. Have no idea when I'm going to find time/money to put them on though. I don't have a welder and that's one of the few things I don't know how to do. So I might have to just take it somewhere to be put on/welded. Which I know isn't going to be cheap. If i can find someone who has a welder I can borrow I might be able to at least tac weld them and then bring them somewhere to be finished up. Fedex also brought me my 2 graded comics signed by the cover artist (J Scott Campbell) and Stan Lee.
Oh kk. Lol
Yes they are much higher flow!
isdriven
New member
Question for those who are already running these headers. Are there any issues with heat and melting? I only have pictures to go off of but, it seems that on the drivers side, the primarys run very close to the steering shaft boot and brake line. Any issues there or anywhere else?
Jason B
Official Vendor
, And that's what you want to go with. I'm selling a few as we speak and I'll know the best part number to use I think soon. Oh also know which magnaflow y-pipe to use as well for those that want even more power.
Doug Thorley 03-04 headers ORDER LINK
Doug Thorley 05-09 headers ORDER LINK
Anyone else that wants to get in on this, now is the time. I'm not 100% sure how long Thorley is going to let me do this deal. I think another week or so maybe. After this deal is done, these headers will be $749! Again, my guy Mike at Thorley said these should ship around the 29th of this month. ALSO, I CAN THE MAGNAFLOW/FLOWMASTER CATS/MUFFLERS for anyone at great prices.
Call/text me at 717-319-2100 to order over the phone, or to order online with a Credit Card, click below
Doug Thorley 03-04 headers ORDER LINK
Doug Thorley 05-09 headers ORDER LINK
Last edited:
Stock manifold would be hotter and no issues with it.
Jason B
Official Vendor
Oh yea. Remember, these are also ceramic coated! Just that coating alone will give more horsepower. Remember, these headers give 30+ HP and 30+ torque gains on the 4.7 v8.
Ceramic Coating Advantages
Ceramic coatings are another way to squeeze out a few more horsepower from your ride. Ceramic coatings are typically used on exhaust components to reduce temperatures. However, their use is not limited to exhaust systems altogether. Ceramic coatings have a very low heat transfer coefficient. This means they do not absorb heat efficiently which makes them an excellent thermal barrier. This is why headers are commonly coated with ceramic paint to keep under hood temperatures low. A byproduct of retaining the heat within the exhaust gas instead of transferring it through the piping of the vehicle is also an increase in power. This occurs because the exhaust gases stay hotter longer which allows them to leave the vehicle at higher velocities. This means a reduction in backpressure and an increase in horsepower will result.
Exhaust Coatings
Ceramic coatings are most popular on headers, and less so on complete exhaust system piping due to additional cost and availability. Although coating both your headers and all the mandrel bent exhaust piping of the rest of your exhaust system would provide the best increase in horsepower. Header ceramic coating is usually available as an option for a few hundred additional dollars when purchasing headers. The coatings themselves are usually very thin on the order of less than a thousandth of an inch. However this is enough to provide a good thermal barrier within the piping allowing exhaust gases to escape the system much more efficiently. Horsepower gains of up to 3% have been claimed by coating an entire exhaust system. In a 300 horsepower vehicle this would equate to roughly 9 hp gained. It is evident that this modification can be a bit costly for the power it returns however it does have additional advantages as well. Ceramic exhaust coatings can reduce under hood temperatures by several tens of degrees Fahrenheit as well. This will keep your engine bay cooler and safer because the excess heat will not affect the fuel lines within the engine bay as much.
Engine Coatings
Ceramic engine coatings are a lesser known and used option to the general public. However the technology is available to coat many parts of the internal combustion engine with ceramics to reduce wear, decrease friction, and lower operating temperatures. Typically piston tops and rings are ceramic coated as well as valves, rods, etc. Coating the piston top with ceramics provides a fantastic thermal benefit. It prevents the extremely hot combustion gases from soaking into the piston material during the explosion within the cylinder. This keeps more heat and energy within the explosion itself which provides more horsepower and torque.
Any surface within the motor that is in contact with another surface while the engine is running will gain an additional benefit with ceramic coatings. An example would include the piston ring to cylinder interface. A reduction in friction will occur that will increase horsepower by allowing the moving components to operate more freely. Depending on how many internal engine components are coated horsepower gains can be anywhere as low as a few horsepower to 30+ horsepower.
Advantages/Disadvantages
The advantages to ceramic coatings are many, including a reduction in friction, reduction of under hood temperatures, and increased component life. However, ceramic coating can be a costly process and usually is not budgeted into many modification projects for that very reason. However with more advanced application processes being developed every year, the prices are coming down and perhaps someday ceramic coating will become an integral step in the production of many engine components.
Doug Thorley 03-04 headers ORDER LINK
Doug Thorley 05-09 headers ORDER LINK
Anyone else that wants to get in on this, now is the time. I'm not 100% sure how long Thorley is going to let me do this deal. I think another week or so maybe. After this deal is done, these headers will be $749! Again, my guy Mike at Thorley said these should ship around the 29th of this month. ALSO, I CAN THE MAGNAFLOW/FLOWMASTER CATS/MUFFLERS for anyone at great prices.
Call/text me at 717-319-2100 to order over the phone, or to order online with a Credit Card, click below
Doug Thorley 03-04 headers ORDER LINK
Doug Thorley 05-09 headers ORDER LINK
Ceramic Coating Advantages
Ceramic coatings are another way to squeeze out a few more horsepower from your ride. Ceramic coatings are typically used on exhaust components to reduce temperatures. However, their use is not limited to exhaust systems altogether. Ceramic coatings have a very low heat transfer coefficient. This means they do not absorb heat efficiently which makes them an excellent thermal barrier. This is why headers are commonly coated with ceramic paint to keep under hood temperatures low. A byproduct of retaining the heat within the exhaust gas instead of transferring it through the piping of the vehicle is also an increase in power. This occurs because the exhaust gases stay hotter longer which allows them to leave the vehicle at higher velocities. This means a reduction in backpressure and an increase in horsepower will result.
Exhaust Coatings
Ceramic coatings are most popular on headers, and less so on complete exhaust system piping due to additional cost and availability. Although coating both your headers and all the mandrel bent exhaust piping of the rest of your exhaust system would provide the best increase in horsepower. Header ceramic coating is usually available as an option for a few hundred additional dollars when purchasing headers. The coatings themselves are usually very thin on the order of less than a thousandth of an inch. However this is enough to provide a good thermal barrier within the piping allowing exhaust gases to escape the system much more efficiently. Horsepower gains of up to 3% have been claimed by coating an entire exhaust system. In a 300 horsepower vehicle this would equate to roughly 9 hp gained. It is evident that this modification can be a bit costly for the power it returns however it does have additional advantages as well. Ceramic exhaust coatings can reduce under hood temperatures by several tens of degrees Fahrenheit as well. This will keep your engine bay cooler and safer because the excess heat will not affect the fuel lines within the engine bay as much.
Engine Coatings
Ceramic engine coatings are a lesser known and used option to the general public. However the technology is available to coat many parts of the internal combustion engine with ceramics to reduce wear, decrease friction, and lower operating temperatures. Typically piston tops and rings are ceramic coated as well as valves, rods, etc. Coating the piston top with ceramics provides a fantastic thermal benefit. It prevents the extremely hot combustion gases from soaking into the piston material during the explosion within the cylinder. This keeps more heat and energy within the explosion itself which provides more horsepower and torque.
Any surface within the motor that is in contact with another surface while the engine is running will gain an additional benefit with ceramic coatings. An example would include the piston ring to cylinder interface. A reduction in friction will occur that will increase horsepower by allowing the moving components to operate more freely. Depending on how many internal engine components are coated horsepower gains can be anywhere as low as a few horsepower to 30+ horsepower.
Advantages/Disadvantages
The advantages to ceramic coatings are many, including a reduction in friction, reduction of under hood temperatures, and increased component life. However, ceramic coating can be a costly process and usually is not budgeted into many modification projects for that very reason. However with more advanced application processes being developed every year, the prices are coming down and perhaps someday ceramic coating will become an integral step in the production of many engine components.
Doug Thorley 03-04 headers ORDER LINK
Doug Thorley 05-09 headers ORDER LINK
Anyone else that wants to get in on this, now is the time. I'm not 100% sure how long Thorley is going to let me do this deal. I think another week or so maybe. After this deal is done, these headers will be $749! Again, my guy Mike at Thorley said these should ship around the 29th of this month. ALSO, I CAN THE MAGNAFLOW/FLOWMASTER CATS/MUFFLERS for anyone at great prices.
Call/text me at 717-319-2100 to order over the phone, or to order online with a Credit Card, click below
Doug Thorley 03-04 headers ORDER LINK
Doug Thorley 05-09 headers ORDER LINK
Last edited:
Is there a specific Y-pipe that you suggest?
isdriven
New member
Nice, what set-up are you going with? Make sure you post sound clips!!!!!
Loud and proud! Headers, straight dual exhaust with a small race muffler. No cats.
I'll make before and after recordings. Fo Sho!
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