03 5 inch exhaust??
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I watch wind blow...
Joined: Dec 2006
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From: Red Dirt territory of TEXAS
well the box I have now is uhs? i think is the brand and i paid something like 430 for it. So i hate to get rid of it, If i could find a box and still be able to use the GN with stacks then I would be all in.
Thread Starter
I watch wind blow...
Joined: Dec 2006
Posts: 1,390
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From: Red Dirt territory of TEXAS
Rick I think your stacks look killer too, minus the shiny for me I like black.
Thanks man. Lots of ppl trying to convince me to keep them, but I just want something else. I'm still wanting to do the 2nd gen manifold soon as well. The offer is on the table, no pressure intended.
244.9/485.2 Level 0
301.2/620.9 Level 3
333.0/672.5 Level 4
368.4/718.0 Level 5
Later that next spring, I replaced the stock elbow with one from a 325/610 truck and hung Magnaflow's # 15989 5" stainless steel exhaust and picked up 13 hp over level 5 (381 hp).......again, on Dunbar's Dyno.
Can't really understand why your truck is suffering from the 5" system......
Greg
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I watch wind blow...
Joined: Dec 2006
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From: Red Dirt territory of TEXAS
gsbrockman, thanx for your input. I to have no idea what went wrong. . but my truck really feels like an actual pig. its ridiculous. . I almost lost to a mustang the other day 
maybe I trashed my turbo when I drove 1 mile with it exiting just after the elbow. I did not get on it. egts below 700. or so ??

maybe I trashed my turbo when I drove 1 mile with it exiting just after the elbow. I did not get on it. egts below 700. or so ??
I don't think so. But you can check your turbo for play. Only thing i can imagine is you just lost quite abit of backpressure. Probably suffered a substantial loss in low end. You still have the he341??? I don't think its a good combo with 5", its a little small. JMHO
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I watch wind blow...
Joined: Dec 2006
Posts: 1,390
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From: Red Dirt territory of TEXAS
yes still have the factory he341, low end is ok, top end above 2500rpms it just falls on its face. lost about 4-5 psi up there. I have been looking at cheaper off brand turbos just to get some power back. also have been looking at the HE351 swap.
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