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#1
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DIY cat gut
My tools About to start The hole saw was my tool of choice With the hole saw you can Tear up the cat material pretty quick. The material turns to dust On the edges there is some insulation that peels off pretty quick with the hole saw. The issue with the hole saw is it's too short After some pounding with a long flat head screw driver I broke through the first layer of the cat. Then there is about 1/2" of dead space and then another layer of the cat. I pounded a hole through this layer Just about done Done...
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X5M Eisenmann exhaust, de-Catted down pipes, 22" HRE wheels, ECUProgram stage II (700hp) tune X5 35d Tuned and Lowered Last edited by Sylvan Lake V35; 10-12-2013 at 10:38 PM. |
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#2
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I am curious to dyno before and after to see what kind of gains if any this will give. It will certainly reduce a serious restriction.
Here is what came out.
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X5M Eisenmann exhaust, de-Catted down pipes, 22" HRE wheels, ECUProgram stage II (700hp) tune X5 35d Tuned and Lowered |
#3
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i did this once on my 1997 4runner. i thought the filter inside the cat was debris clogged up..... so basically i gutted my cat on accident
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#4
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How's the sound and power?
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#5
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I still don't have them on yet. Hopefully something soon.
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X5M Eisenmann exhaust, de-Catted down pipes, 22" HRE wheels, ECUProgram stage II (700hp) tune X5 35d Tuned and Lowered |
#6
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pretty neat. keep us in the loop!
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#7
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any updates?
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2010 X5M Active Autowerks tune 22" BBS SV in Titanium Gunmetal Black grills
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#8
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How are you planning to cancel the CEL the post-cat O2 sensors will throw?
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'03 X5 4.4 Sport, last of the M62s (8-03 build date) I believe in deadication to craftmanship in a world of mediocrity! |
#9
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Awesome!
Thanks for sharing.... i'd like to know the difference in in-cabin-odor between a Gutted OEM Cat vs Aftermarket cat-less vs aftermarket/Custom Race cat down pipes im looking for the one with the LEAST amount of in-cabin odor |
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