Rick does build them and yes i purchased them from TXchris. That dyno sheet was on a bone stock truck so hopefully it will be a lil bit more with my 64 71 14 turbo and added fuel
Tony gave me. ?????? I am getting in touch with the wrighter who did my DP mag article to see if he wants to do a wright up on the install/ dyno runs. We would do 2 stock header pulls on the dyno then go to a shop and switch the headers and up-pipes out then drive back and do two dyno pulls again. I copied and pasted everything below from another member.........
Well, as far as tuning and power, I'm basicaly stock. My truck needs to be very reliable for towing purposes and since I work on vehicles for a living, I realy don't feel like working on my own truck when the day is over.
Just 'seat of pants' performance gains with just the up pipes were increadible. Low end comes on strong, with much less pedal. Spool up is quick and lag is minimal at any given time. You'll be able to see the difference just by compareing the stockers to the new ones, much less restrictive. Less restriction = gasses getting to the turbo faster
Now for real numbers. Here's how it went down on the dyno:
hp/torque
.............. 2250rpm - 2750 - Peak
My stock- 108/258 - 220/420 - 231.7/420.5
Up Pipes - 156/366 - 228/435 - 237.1/434.9
I gained ~5hp and ~14lb.ft. torque at peak, but the low end where I tow and the truck gets it's daily use I've gained ~48hp and ~108 lb.ft. torque This is all without any extra tuning or jacking with anything else. This is just the up pipe installation only.