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Old May 19, 2010 | 10:18 AM
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Default High Flow Cats
Now that I have replaced all 4 of my original O2's and got a new MAF I want to change my Cat's to a high flow setup. I was looking at some aftermarket pieces and found some high flow Thunderbolts for a good price, but I've never heard of them before. Anybody running these? Heard of them? Have any suggestions on what would be good to go with?

I appreciate the input.
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Old May 19, 2010 | 01:08 PM
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im running thunderbolts here and i like them
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Old May 19, 2010 | 05:31 PM
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Originally Posted by Brandon35thSS
im running thunderbolts here and i like them
Sweet! Are you running the 3"? How did they fit? How much did ya pay to get the welding done?
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Old May 19, 2010 | 07:13 PM
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mine are the 3" and it cost me 40 bucks to get them welded in. heres a cold start of my catted y + lm1 on my 228r cammed car.

http://www.youtube.com/watch?v=jDYDXfTPwJs
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Old May 19, 2010 | 07:41 PM
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Originally Posted by Brandon35thSS
im running thunderbolts here and i like them
where on the Y pipe did u have them welded in??
i had decided to get some of the thunderbolt cats too but i looked the other day and my tsp ory is already tucked so close to the floorboard that its pretty much impossible to weld in cats......

sorry, didnt mean to hijack your thread
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Old May 19, 2010 | 09:11 PM
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mine are where the ones on the tsp catted y are. it looks like i bought a catted y in the first place.
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Old May 20, 2010 | 09:49 AM
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Originally Posted by Brandon35thSS
mine are where the ones on the tsp catted y are. it looks like i bought a catted y in the first place.
Sweet. I really like the TSP ORY, but instead of going with a Y, I want to dump out the sides in front of the rear wheels. Any rough idea of what I should be expecting to pay roughly for the setup? Would you suggest the 2.5" or the 3" Thunderbolt?
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Old May 20, 2010 | 10:05 AM
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dont know how much it might cost to have that welded up but i would definately go with the 3 inch.
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Old May 20, 2010 | 08:09 PM
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Randomtech headers...check sig for sound. Flow very good but cost an arm and a leg!
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Old May 21, 2010 | 11:03 AM
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Originally Posted by Brandon35thSS
dont know how much it might cost to have that welded up but i would definately go with the 3 inch.
Sweet. Thanks for the info. You running headers?
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Old May 21, 2010 | 01:10 PM
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yeah im running coated pacesetters. mods are in my sig.
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Old May 24, 2010 | 03:29 PM
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Originally Posted by Brandon35thSS
yeah im running coated pacesetters. mods are in my sig.
Gotcha, don't know how I missed that.
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