Doug Thorley Headers start up, rev, and drive by videos!

Jason B

Jason B

Official Vendor
Ok, lol, these sounds incredible.

I know most won't run straight pipes but you guys gotta here this.





32HP gain/35 ft lbs of torque! He's also getting 2 more mpg with the 35" tires and 5" lift. It's a monster truck.

312146d1537221578-05-09-4-7l-doug-thorley-headers-group-buy-2006-4runner-stockvsshorties.jpg


Doug Thorley 03-04 headers ORDER LINK

Doug Thorley 05-09 headers ORDER LINK
 
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I think it sounds awesome, but I could never drive with it. Maybe just as a trail only rig.

Here is with full Gibson exhaust which most do with these and it's much tamer:

 
Having this modification to my 4th gen myself for the past 30k miles, there's no way you get a 32 hp increase. Especially with 35's.
 
lol....i never heard "redneck" being used as a term of racism....hahahaha

Never the less, no name calling please.
 
actually i see many people, displayed as protesters about something or another on a daily basis for awhile now, throwing around that term and the term racist quite quickly; nearly as their go-to's, to blanket anyone who disagrees with them (tolerant much?) as a redneck or a racist...which ironically is racist or at least prejudice. the sad part is now the term carries less weight for actual, terrible, racism.

OP those headers are run by a guy up my way with a pretty sick 4R and it sounds mean! any videos, with catback or not with those headers, i think that motor sounds sick. i personaly wouldnt want to hear that as my daily, and neighbors or w.e. I could see getting upset, but of itself i'd say thats a pretty sweet sounding ride imo! sounds like American muscle lol
 
It's 32 HP on the dyno in a stock truck and nothing else. But yea, Lol, 35's eat up quite a bit, but the headers still help get you back what you lost + more. This customer went from 11.9 mpg to 13.9 so far (remember, 35's and 5" lift) and they've only been on a few days. He did one trip so far. After the ECU adjusts I hope to get more feedback. Never had anyone with 35's do these until now.

ALSO, keep in mind, with lifted truck this much, you will have to dimple the header and make adjustments. A mild lift like a 2/1, etc will be ok.
 
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Jason B said:
It's 32 HP on the dyno in a stock truck and nothing else. But yea, Lol, 35's eat up quite a bit, but the headers still help get you back what you lost + more. This customer went from 11.9 mpg to 13.9 so far (remember, 35's and 5" lift) and they've only been on a few days. He did one trip so far. After the ECU adjusts I hope to get more feedback. Never had anyone with 35's do these until now.

ALSO, keep in mind, with lifted truck this much, you will have to dimple the header and make adjustments. A mild lift like a 2/1, etc will be ok.
Click to expand...

Just curious what you mean by that statement? I have the DT headers, but I’m having trouble understanding why you’d need to dimple the header, or make adjustments with a lift.

I’m running my headers with the TRD dual exhaust cat back, and it sounds absolutely amazing. Mellow at cruise, but absolutely growls under throttle. I couldn’t be happier, especially for it being an SUV, and not a muscle car.
 
Terminator03 said:
Just curious what you mean by that statement? I have the DT headers, but I’m having trouble understanding why you’d need to dimple the header, or make adjustments with a lift.

I’m running my headers with the TRD dual exhaust cat back, and it sounds absolutely amazing. Mellow at cruise, but absolutely growls under throttle. I couldn’t be happier, especially for it being an SUV, and not a muscle car.
Click to expand...

It's a 5" lift which is HUGE and the angle changes, not the same as a mild lift. I"m pretty sure very few would be running a lift that big, so no worries.

I'm glad you like it! Hope you can make some videos. IF you can host them, I will.
 
Jason B said:
It's 32 HP on the dyno in a stock truck and nothing else. But yea, Lol, 35's eat up quite a bit, but the headers still help get you back what you lost + more. This customer went from 11.9 mpg to 13.9 so far (remember, 35's and 5" lift) and they've only been on a few days. He did one trip so far. After the ECU adjusts I hope to get more feedback. Never had anyone with 35's do these until now.

ALSO, keep in mind, with lifted truck this much, you will have to dimple the header and make adjustments. A mild lift like a 2/1, etc will be ok.
Click to expand...
How is the y pipe coming along? Sounds like a great start to a new exhaust system.

Sent from my XT1710-02 using Tapatalk
 
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