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- Reaction score
- 5
- Thunderbird Year
- 2004
Has anyone installed headers on the 3.9L engine? Did they fit well? What was the results?
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2002-05 Owners. As of August 2022 there is now an entire suspension kit for sale! Scroll down to the bottom of the first post click here.
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Yeah, that description is a little iffy.I would call Patriot ask them specifically if this fit the retro bird. Description looks iffy.
"Fits with stock, Mustang and Vega steering.
Flat collector design for maximum frame clearance.
Will not fit GT40 “P” head". Sounds like they are describing older SBF.
How so?High-flow cats make more sense than headers alone.
I installed a Borla several years ago and I am quite pleased with the results. I would like to replace the stock cats with hp cats but don’t know which ones to use. Has anyone dine this?The Borla kit ... while really pricey, is designed with a purpose.
Remember the premise - "Horsepower sells cars, but Torque wins races."
Letting your engine breathe is fine and all, but you get to a point where if you open it up too much on the exhaust end, you kill usable backpressure and actually hurt your torque figures - which in turns ruins your drive-ability throughout the powerband. The Borla cat-back kit is made to open it up just a hair, but materially gives you the resonance and sound that most look for, without the mindless droning that annoy you at cruising speeds.
I used to solve sound problems by dropping in a Flowmaster 70 series and leaving just about everything else fore and aft alone, but I think this time around, I'm gonna just "buy once, cry once" and go with the Borla kit.
Did anyone ever get back to you on this?Has anyone installed headers on the 3.9L engine? Did they fit well? What was the results?
I installed the Borla on my 2005 50th anniversary, I found it on eBay for around eight hundred. Easy install, I set my car up on jack stands on all fours pulled off the factory exhaust and installed new in three hours. I am very pleased with the sports car sound and with my K & N Typhoon cold air intake it brought my HP to 300 and 325 lbs torque, I also had a speed shop do a little adjusting to get this out of it.The Borla kit ... while really pricey, is designed with a purpose.
Remember the premise - "Horsepower sells cars, but Torque wins races."
Letting your engine breathe is fine and all, but you get to a point where if you open it up too much on the exhaust end, you kill usable backpressure and actually hurt your torque figures - which in turns ruins your drive-ability throughout the powerband. The Borla cat-back kit is made to open it up just a hair, but materially gives you the resonance and sound that most look for, without the mindless droning that annoy you at cruising speeds.
I used to solve sound problems by dropping in a Flowmaster 70 series and leaving just about everything else fore and aft alone, but I think this time around, I'm gonna just "buy once, cry once" and go with the Borla kit.
I had to buy a Tonneau cover and found a set of show bars for a Mazda Miata and made a couple of cuts to modify & mounted it to the cover to fit in the car.I'd life to hear about that roll bar behind driver's seat, is there one on the passenger side too?
Where's it from?
That's pretty great!I had to buy a Tonneau cover and found a set of show bars for a Mazda Miata and made a couple of cuts to modify & mounted it to the cover to fit in the car.