CL55 X Pipe or H pipe or??
but I also read that both reduce back pressure which lowers the supercharger psi but its a good thing which from what I read means that even with lower psi you make more power. I also saw that one gives it a more American v8 sound and the other one a more exotic v8 sound. Which do you guys think would be best to do? my car is still stock but I will eventually be moving into cooling upgrades then pulley and all that good stuff, I also wanted to ask for which ever one I go for what size x pipe or h pipe do I have to buy so it fits good? I do not know what size the stock exhaust is right before the resonators. If there is a better option for me to do please let me know this is what I had in mind but there could be something else to do.
Thanks!
(I know this is the E55 side but the CL forum side is dead, same engine)









