A word about pipe diameter
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A word about pipe diameter
This is a text from: http://www.rallyperformance.com/lsportexhaust.htm
Some customers are concerned to find that our muffler pipe is a 2.5 inch system, rather than 3". Actually, the system varies in diameter as you move back from the turbo outlet. It starts at over 5" wide! This follows gas flow principles learned from years of building systems for 2.0 Liter turbocharged engines.
If you don't believe this, stack our cat back system up against a leading cat back 3" system.
In a recent test on an Evo 6.5 vs. another manufacturer (three initials, starting in H and K) we beat them by an absurd 16 horsepower. That's the cat-back exhaust, not even counting the downpipe.
The principle with our exhaust is even the case when you add an uprated turbo, unless you've built a true monster. Better low and midrange torque is much more useful than high end, and that is what we tune for.
Still, we've found that some in the aftermarket community don't believe us. That's OK, we don't want to argue too hard - they can continue building systems their way - and we will continue beating them for area under the torque curve... and for great sound!
What Do you guys think?
Some customers are concerned to find that our muffler pipe is a 2.5 inch system, rather than 3". Actually, the system varies in diameter as you move back from the turbo outlet. It starts at over 5" wide! This follows gas flow principles learned from years of building systems for 2.0 Liter turbocharged engines.
If you don't believe this, stack our cat back system up against a leading cat back 3" system.
In a recent test on an Evo 6.5 vs. another manufacturer (three initials, starting in H and K) we beat them by an absurd 16 horsepower. That's the cat-back exhaust, not even counting the downpipe.
The principle with our exhaust is even the case when you add an uprated turbo, unless you've built a true monster. Better low and midrange torque is much more useful than high end, and that is what we tune for.
Still, we've found that some in the aftermarket community don't believe us. That's OK, we don't want to argue too hard - they can continue building systems their way - and we will continue beating them for area under the torque curve... and for great sound!
What Do you guys think?
