I called up Doctor Gas and the bottom line is that I need an Xpipe to achieve maximum performance and to smooth out as well as quiet the exhaust note.
I asked a ton of questions and here is the briefing.
Q: Is a 2.25 pipe big enough for our trucks to achieve maximum performance between 350 and 400 HP.
A: No. 2.5" would do better performance wise but it's a truck so you may want more torque for towing.
Q: what's more effective, an H or an X pipe.
A: An X pipe.
Q: would there be any advantage to using both an H and an X pipe.
A: No. The H pipe would disrupt the flow prior to the X pipe and make the X pipe less effective.
Q: I spoke with Magnaflow and they said their X pipes were the kind used on NASCAR, is this correct?
A: He just laughed at first and then said No, their X pipes are not used on any NASCARS that he knows of.
I actually asked the guy at Magnaflow to clarify for me and he said that what he meant to say was that NASCARS use X pipes and Manaflow sells X pipes, lol.
The man at Dr Gas told me that's correct, NASCAR uses Dr Gas X pipes at the Super Speedways.
Q: What makes your X pipes different from Magnaflows.
A: Dr Gas X pipes achieve a true merging of the gases from both sides of the motor via tight radius turns whereas the Magnaflow is simply a chamber they dump the two sides into and it is not as effective as the Dr Gas design.
Q. Where should I put the X pipe?
A: As close to the mid pipes in your truck as possible.
Q: What type of power gain can I expect to see from my engine that dynoed at 343 HP?
A: About 5HP and 10 FT LBS of TQ, minimum.
Q. How much is your custom 2.25" Tandem X pipe and what is the lead time.
A: it's 184.00 and the lead time is about a week.
Q: What dimensions do you need to make my custom X pipe.
A: Your pipe diameter and the center to center distance between them.
My truck should sound about like this with the X pipe on it.
http://www.youtube.com/watch?v=W-NbX7s5k_E
Man I sure do miss the country roads back home, lol.
I asked a ton of questions and here is the briefing.
Q: Is a 2.25 pipe big enough for our trucks to achieve maximum performance between 350 and 400 HP.
A: No. 2.5" would do better performance wise but it's a truck so you may want more torque for towing.
Q: what's more effective, an H or an X pipe.
A: An X pipe.
Q: would there be any advantage to using both an H and an X pipe.
A: No. The H pipe would disrupt the flow prior to the X pipe and make the X pipe less effective.
Q: I spoke with Magnaflow and they said their X pipes were the kind used on NASCAR, is this correct?
A: He just laughed at first and then said No, their X pipes are not used on any NASCARS that he knows of.
I actually asked the guy at Magnaflow to clarify for me and he said that what he meant to say was that NASCARS use X pipes and Manaflow sells X pipes, lol.
The man at Dr Gas told me that's correct, NASCAR uses Dr Gas X pipes at the Super Speedways.
Q: What makes your X pipes different from Magnaflows.
A: Dr Gas X pipes achieve a true merging of the gases from both sides of the motor via tight radius turns whereas the Magnaflow is simply a chamber they dump the two sides into and it is not as effective as the Dr Gas design.
Q. Where should I put the X pipe?
A: As close to the mid pipes in your truck as possible.
Q: What type of power gain can I expect to see from my engine that dynoed at 343 HP?
A: About 5HP and 10 FT LBS of TQ, minimum.
Q. How much is your custom 2.25" Tandem X pipe and what is the lead time.
A: it's 184.00 and the lead time is about a week.
Q: What dimensions do you need to make my custom X pipe.
A: Your pipe diameter and the center to center distance between them.
My truck should sound about like this with the X pipe on it.
http://www.youtube.com/watch?v=W-NbX7s5k_E
Man I sure do miss the country roads back home, lol.