X pipe H pipe or side by side

yellow rose said
Ok when YOU test and do R&D like nascar then I would agree. I can't tell you how many times on the dyno I have taken both styles off and made power. And at the tack.

If, and it is a big IF, you are testing cam/cylinder head/induction/exhaust then you MIGHT find power in a very narrow rpm.

I am not the only guy out there testing this stuff, and finding 99% of the results outright lies. Joe Sherman, a very well respected engine builder who worked with Edelbrock has been dyno testing this stuff way before I started. Our results, REAL WORLD RESULTS agree.

Go join speedtalk.com and then search the site for x and h pipe threads. And you will see the guys who love x and h pipes and tri-y headers and merge collectors (another joke for 99.95% of us) are the same ones who get to spend 100k in development with the latest testing equipment you can buy. All in a computer controlled atmosphere, both the dyno room and flow bench room.

Do the research before you spend your money. You can spend less money and get more than to mess with that stuff.

But some guys are slow learners, or have handicapped combinations. I suggest fixing the combo and then be prepared to spend big $$$$$$$ to do and get reliable testing.

Flame on.

I see what you're saying and can't make an argument against it because I don't have the time, money and resources to do all the testing you have apparently done. With that said can we not assume that most guys on here are hobby guys like me and lack the resources to completely science out the headers on their cars like you have done? I can say this however, every car I've had with a full exhaust gained torque and sounded better when I added an H pipe. The cost was minimal and all it took was a few hours of work. Maybe it is a crutch but its a nice inexpensive one that works good.