[SANDSGT]

Well, I'm finally starting to mess with my '99GT and put 40 Series Flow Masters (Delta Flow) on last week.

I'm a little disappointed and wanted a little more sound. I know a lot of you have the H pipe to go with the Flows but I'm concerned about voiding my warranty.

Will the Flows gradually break in and get louder or should I add the H pipe? What's the going price on the H?

Do you think these mods are going to void my warranty?

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35th Anniversary
Limited Edition
Black on Black
5-speed
40 Series FlowMasters