This "may" raise some eye brows and some asking themselves "What the hell is this guy thinking?" None the less, curiosity and improved engine life, performance and slightly better fuel economy (?) does make me consider the question quite seriously.
The question - Can you buy true "Performance Headers" and a "True Tuned Exhaust System" for a 2007 E350 3.5 ltr V6 with factory fitted Sports Package?
The logic, headers and a tuned exhaust system produce "freer" air flow and reduces back pressure. Therefore, theoretically, that in itself should increase BHP and Torque as well as improving fuel economy, even if only marginally I have read that in some cases, BHP can be increased by as much 40 BHP and Torque can be increased by as much as 30 Torque. The 3.5 ltr V6 already produces 278 BHP I believe so getting it above (fingers crossed) would be a huge plus, especially for long distance/highway driving.
Naturally, there are many other things could be done, a cold air intake, turbo charger, performance chips etc etc etc. From what i can tell, the headers + exhaust offer improved BHP and Torque for a reasonable price.
All thoughts and opinions welcomed. And yes, buying an AMG or Black would be the "easiest option" ...... I wish; although I do know where there is an early model SL 550 pure AMG for sale .....