Hey Padre,
thanks for helping me narrow it down.
Ok, so now Im wondering if I might risk losing low end torque on my L99, if I go ahead and add the high flow cats to my existing 3" cat back flowmaster. Everything else is stock. If it does cause low end torque loss, what mod would be best to get it back besides a tune?
what do you think?
One more thing, what does the 555r and 3200TC mean in your signature?