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Exhaust mod question for Half Mile Event

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Old 02-23-2012, 07:12 PM
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Exhaust mod question for Half Mile Event

Next month is a half mile event that I am preparing for. Im getting a rear tank and intake fabricated, grinding the tb shaft, modifying the stock fuel rail and getting injectors. My mods now are H/E, pump and tune and 180 pulley.

Now my question is that Im having my secondary cats removed and resonators replaced with an x pipe but should instead of welding the muffler side back should I spend the extra money on VBand clamps so I can remove that extra weight at the track? Also...should I do a primary cat delete even though Im still on stock headers?

Thanks for the opinions!
Old 02-23-2012, 07:34 PM
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Originally Posted by JoshM813
Next month is a half mile event that I am preparing for. Im getting a rear tank and intake fabricated, grinding the tb shaft, modifying the stock fuel rail and getting injectors. My mods now are H/E, pump and tune and 180 pulley.

Now my question is that Im having my secondary cats removed and resonators replaced with an x pipe but should instead of welding the muffler side back should I spend the extra money on VBand clamps so I can remove that extra weight at the track? Also...should I do a primary cat delete even though Im still on stock headers?

Thanks for the opinions!


I have heard in the past that just removing the primary and secondary cats is a significant step in opening up the exhaust, thus adding more HP
Old 02-23-2012, 07:43 PM
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cut out the secondary cats and leave the rest of the system (towards the mufflers) off, like you were saying..
Old 02-23-2012, 07:44 PM
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Primary cats out too?

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