Still, personally, I do not feel that the stock exhaust is THAT restrictive.... You are still going to be pushing a lot of exhaust out....
And think of the backpressure created also that will be beneficial with lots o gases in front of the exhaust.
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If you only knew the power of the Lude...
'92 Porsche 968 - National PCA HPDE Instructor
'98 Red Base Prelude - 02 & 03 DSP Champion - Sold
"Straights are for fast cars. Turns are for fast drivers." - SCCA Solo2