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3" to 2.5"

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Old 02-19-2008, 02:42 PM
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Default 3" to 2.5"

Right now I have Pacesetter LTs into their offroad y-pipe with a Dynomax bullet welded on to the end with a turndown. I want to get rid of the turndown and have some pipes coming out the back, but no one around here can mandrel bend 3" pipe, they can only crush bend. They say I should just buy a catback....


Would welded 2.5" onto the end of my 3" Y-pipe/Bullet cause a noticeable drop in power? Or not enough to worry about?

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Old 02-19-2008, 02:50 PM
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I would just get a full 3" cat-back and ditch the bullet
Old 02-19-2008, 03:08 PM
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Originally Posted by Segselah
I would just get a full 3" cat-back and ditch the bullet
Wow, thanks, that was exactly the answer to my question!
Old 02-19-2008, 03:11 PM
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Look, downsizing the pipe is of course going to mess with your flow, will it be noticeable? I dunno. Is it worth it? I would say definitely not. Why would you want to do anything that would decrease your power? Why don't you just unplug a spark plug wire while your at it. It will probably decrease your power, but it would sound cool, and that's worth it.
Old 02-19-2008, 04:45 PM
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Old 02-19-2008, 06:56 PM
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Look on ebay for someone selling a bunch of 3" mandrel bends in a box. Ive got paceseters and a y and a 1 chamber flow with a dump but im fixin to build true duals with a 2.5" mandrel bends i bought on there for about $40 and i remeber seeing some 3"
Old 02-19-2008, 08:02 PM
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I think APE here in Jacksonville can hook you up....if it's worth the 2-hour drive for you. If you need more info, let me know and I'll talk to them for you.
Old 02-19-2008, 09:43 PM
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Originally Posted by 99Hawk262
I think APE here in Jacksonville can hook you up....if it's worth the 2-hour drive for you. If you need more info, let me know and I'll talk to them for you.
Hey, definitely not worth the 2 hour drive..haha
Old 02-19-2008, 10:14 PM
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ok...i know this is NOT the answer your lookin for, but its the best answer possible...get a catback or buy/build a TD system...good luck with whatever you decide
Old 02-19-2008, 10:15 PM
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Originally Posted by SVThis
ok...i know this is NOT the answer your lookin for, but its the best answer possible...get a catback or buy/build a TD system...good luck with whatever you decide
Yeah, I just don't want to spend $400 on a catback system when all I want is my Dynomax Bullet in the stock muffler location..haha

I want to leave the turndown on the Bullet and just mount the muffler sideways in stock location. I don't care about having tips, I want it hidden...so no need to actually buy a catback.
Old 02-19-2008, 11:10 PM
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The tail pipes are not as critical as the pipes before the mufflers. The mufflers cause backpressure and lower the exhaust gass velocity significantly. I'ts doubtfull you would notice a rear difference on the dyno and I'd bet money you'd never feel it.

Re'
Old 02-19-2008, 11:17 PM
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Originally Posted by RE AND CHERYL
The tail pipes are not as critical as the pipes before the mufflers. The mufflers cause backpressure and lower the exhaust gass velocity significantly. I'ts doubtfull you would notice a rear difference on the dyno and I'd bet money you'd never feel it.

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