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Old 10-12-2007, 06:40 AM
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New Exhaust Question

I've got my Baldwin air filter to install this weekend, and next will be exhaust. I was thinking of straight piping it, but am going for something bigger to get the EGT's down before I get some custom tunes.

My truck is basically stock, besides the will be Baldwin filter and Superchip that's in there now. My question is, should I go with a 4" exhaust or will 5" be that much better/or too much (being my truck will be basically stock besides the two listed mods) but I do plan on getting the 140 tune from DP and will want to use it occasionally, haha! So, let's hear you opinions! 4" or 5"? What will be my best choice for gain in performance, lowest EGT temps?

Thanks guys!
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Old 10-12-2007, 07:01 AM
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4" is all you will need unless your thinking of making some serious power (500+)
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Old 10-12-2007, 07:05 AM
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4" Turbo back will do you just fine and sound good too

and make sure you have guages sometime soon too!
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Old 10-12-2007, 07:06 AM
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I agree 4", make sure you get a true turbo-back kit and you'll be set. It a very simple install...
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Old 10-12-2007, 07:07 AM
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Thanks for the quick reply man! I figured 4" would be enough, but would 5" make any difference in power or lower EGT's?

My truck is an early '99 if it matters...

EDIT: You guys are quick! In my one minute of typing several other people responded!
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Old 10-12-2007, 07:13 AM
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nope it wont... the sound will be different but thats about it. put it this way the banks sidewinder making ridiculous HP is using 4" exhaust
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Old 10-12-2007, 07:17 AM
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Once again I agree and diff. will be sound and a few EGT's prolly less than 50-100. Trust us go with the 4" it will make for better clearance when installing the down pipe...
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Old 10-12-2007, 07:19 AM
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Oh yeah... Welcome 2 the ORG...
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Old 10-12-2007, 07:21 AM
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Sweet, thanks for all the help guys. All in a matter of minutes to! 4" it is. Is it better to run just a 4" straight pipe or buy a bolt on kit like Magnaflow/Borla or whatever is out there? Is there any difference between the two in power/EGT temp, besides sound?

Also, what about the downpipe? 3.5" or 4"? I've heard they are a royal PITA to install...
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Old 10-12-2007, 07:25 AM
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all straight pipe exhaust is about the same... so go with whatever is cheapest MBRP is very good... also are you gonna go stainless or Al? and 4" DP is a PITA to install but will overall be better....
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