Doug Thorley Short Tube Headers 4 Doug Thorley Long Tubes

I want to trade my Doug thorley short tube headers with new cats on them for doug thorley long tubes + o2 sim ... The shorties have about 2000 km same with the cats. The cats are high flow magnaflow spuns

 

I hate you I just ordered short tubes today! I have long tubes currently. If possible, would you send me short tubes first and then I'll send you my long tubes. I'll give you a deposit.

 

Haha sorry bro I need the long tubes first because I threw out the old manifold and cats I would be truckless haha

 

I would be Truckless too that's why I need them also! LOL! Dam.

 

What's the man differents between long and short?

 

Long tube headers delete the first 2 cats and give more high end power but are not smog legal. short tubes keep the cats and give more low end power

 

Here's graphs with dyno I would say on my experience the best gains are 3-4k although it hard to get my truck moving with 600 pounds of armor plus winch and 300 pounds of line x haha. I want to trade because I want long tubes and y pipe catless system.... http://www.tacomaworld.com/forum/performance-tuning/224447-doug-thorley-short-tube-header-dyno.html

 

I'm sorry but I have to disagree with you have you ever looked inside of cats they have mesh looking baffles and stuff that the air must go through anything inturupting air flow is slowing you down you delete all your cats and have a straight throw exhaust It would make sence to have faster flow? But u lose back pressure which I believe takes low end power .. I dont know i am not an engineer or mechanic but that's my understanding

 

http://www.thumpertalk.com/topic/571594-exhaust-backpressure-the-myth/

 

Are they for sale at all or just trade?

 

Just trade sorry

 

May have some dt long tubes I am getting with trade but I may be interested in trade for your shorties. Just curious as as how to do the trade??? I cam have the guy ship them to you if you send me a deposit through paypal until you get the shorties off and send them and then refund the money back to you once the trans is complete I will find out when exactly I would be getting them in the next week he is waiting on his turbo manifolds to be finished and sent. Email me if your interested reidershaun@yahoo.com thanks.

 

Runs A LOT better with the front two cleared out. The passenger side one had a hole through it and was bad. But I kept it even and did the driver side. It was causing back pressure and shutting my truck off after about 10 seconds of running. Then wouldn't crack unless I tapped it with something. Once I cleared it out, haven't had a problem

 

Cats (catalytic convertors), are like a septic sand mound, they work fine until they begin to plug up. After that, they'll cause some extremely shitty effects on the entire system.

Damaging effects if left unattended.