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Alternate Smooth Bellows?

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Old 05-19-2009, 04:26 PM
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Default Alternate Smooth Bellows?

Just curious to see what you guys are using for your alternate source for the smooth bellow mod, or if its even worth the effort? I was at home depot today and saw a bunch of 3-4" diameter rubber couplers that may be used for this? Anyone have any more info on how to do this?
Old 05-19-2009, 04:45 PM
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intakehoses dot com
Old 05-19-2009, 05:14 PM
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Great site but what exactly do I need that will fit properly?
Old 05-19-2009, 05:36 PM
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sewer coupler from home depot performance
Old 05-19-2009, 06:08 PM
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There are some inexpensive ones on ebay. I bought an SLP replica one for $18 shipped. Fit perfect on an SLP lid, no trimming or modifications necessary. Lowes and HD definitely have some alternatives. The only hardware you need is hose clamps if you don't already have them.
Old 05-19-2009, 07:54 PM
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Can you tell me more about this slp replica? Now does the hose have to be at a specific angle or just straight,
Old 05-19-2009, 10:15 PM
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Alternate to smooth bellows? GM bellows. I've tried smooth bellows and realistically, I didn't feel any difference and I didn't like the fact it is stiff as hell. I went back to stock bellow.
Old 05-20-2009, 01:08 AM
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Originally Posted by Striker
Can you tell me more about this slp replica? Now does the hose have to be at a specific angle or just straight,

It is basically the exact same thing as the SLP Smooth Bellow. I just bought it from someone on ebay for cheap. As far as the hose goes, there is a slight bend from the MAF to the throttle body.
Old 05-20-2009, 10:36 AM
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I brought the real SLP smooth bellow, no impressed at all. It doesn't fit a whisper lid to an FAST LSX intake. No matter how many mods I tried, it just wouldn't fit. The height of the engine was higher than the air box. Every time I revved it ripped the lid from the air box.

Ended up making something myself out of a couple of hoses from somewhere else.
Old 05-20-2009, 11:17 AM
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Thats the problem with getting a straight hose I would think. There has to be enough flex in it to make that bend. I have seen a lot of people use those silicone hump hoses as a substitute.

It is not that much of a power gain so I really wouldn't spend a whole lot unless you have money to spend. I suppose it just goes in that "every little bit helps" category.
Old 05-20-2009, 07:08 PM
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What about something like this that's 3 inch and has the hump in the middle for flexibility?

Old 05-20-2009, 07:57 PM
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HD performance worked for me.
Old 05-20-2009, 11:04 PM
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Originally Posted by Shockwave179
What about something like this that's 3 inch and has the hump in the middle for flexibility?

Yeah exactly! Thats the silicone hump hose I was talking about. Good call Shockwave179.
Old 05-22-2009, 02:57 AM
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was that at home depot?
Old 05-22-2009, 11:58 AM
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Its called fernco at home depot. And if your motor is twisting you lid off then you need motor mounts. the factory accordian tube is just hiding that fact.
Old 05-22-2009, 12:01 PM
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So it doesnt need to have a curve or anything like that? I can just go to home depot and pick up a STRAIGHT 3"x3" piece of fernco?
Old 09-22-2010, 10:27 PM
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Default question?????

will a slp lid, smooth bellow, and a helix throtle body spacer all fit? or should i get the ferco and cut it to fit i allready have the lid and the throtle body spacer, its for a 2002 ls1 z28 im new at this website and dont know how to post yet really any advice is apreciated thank you!!!
Old 09-22-2010, 10:43 PM
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Pull the TB spacer off and you'll be fine. They're not worth a **** on a non-carb engine.

Fernco's an appearance mod, not a power one, also.
Old 09-22-2010, 10:46 PM
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what you should do is get rid of that TB spacer...its does NOTHING. i got the cheap fake slp smooth bellow from ebay for 25 shipped just because every lil bit helps and it does look great. it fits perfectly with my fast toys 85mm lid, 85mm maf, and my fast 90/90. it is ridged but i had it on stock mounts and it never riped off or cracked anything. now with the poly mounts no worries at all. everyone here should get poly mounts anyway cause it actually made my head and cam car MORE drivable.
Old 09-23-2010, 01:12 PM
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search my name I made a thread...not super cheap but better around $30 shipped

intake hoses .com 22* bend 4" I.d. rubber hose under special angle section iirc


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