Originally Posted by j-fire
okay, seeing all the variations of exhausts on here, and with our own miserable attempts at making a more 'potent' exhaust, i was mulling something over....
in high powered SINGLE exhaust cars running boost like Toyota supras, STi's etc.... i most commonly see SINGLE 3" exhaust upgrades.
NOW. if we were running TRUE DUALS on our boosted SRT's, doesn't building 2.5" exhaust on EACH side actually equate to 5" of exhaust??? and is this an incorrect statement?
wouldn't maybe something more tame such as 2" exhaust on each side with no cats provide a better "BALANCE" of power delivery?
i mean, if AMG fitted us with a single 2.75" single exhaust from the factory, (which equates to 1.37" per side) and still allows for a lot of power, are we all getting too greedy with the exhaust volume?
I believe that to, in fact, be an incorrect statement. The cross-section area of the tube would be pi*r^2. 3.14 * 1.25 * 1.25 = 4.91 inches of area. So, duals would be 9.8125" of total area. By comparison, 3.14 * 2.5 * 2.5 = 19.625" of total area. In conclusion, the single 5" exhaust tube would flow WAY more than two 2.5" exhaust tubes.