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Will SLP dual/dual flow as well as 2OTL??

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Old 04-12-2002, 01:45 PM
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Default Re: Will SLP dual/dual flow as well as 2OTL??

Actually, from what I've seen on before/after tests on nearly stock LS1s, the Dual-Dual makes more power than the 2OTL setup. Its a damn good catback for being so quiet.

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Old 04-12-2002, 04:11 PM
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Default Re: Will SLP dual/dual flow as well as 2OTL??

From a physcial flow point I don't see how the Dual Dual could flow as good as the 2OTL. Having said that I think there is probably very little HP difference between the two. Joe.
Old 04-12-2002, 04:29 PM
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Default Re: Will SLP dual/dual flow as well as 2OTL??

FWIW I have seen the SLP cutaway of the SLP 2otl.

Basically it's a 3" inlet that Y's off at like a 15 degree angle inside, into two 3" pipes.
Old 04-12-2002, 04:49 PM
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Default Re: Will SLP dual/dual flow as well as 2OTL??

I am hopefully getting my setup tonight, but its all the way in Orland and I don't really want to drive in rush hour... <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
Old 04-13-2002, 12:56 AM
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Default Will SLP dual/dual flow as well as 2OTL??

I have an ORY and the 2OTL was the perfect sound until I put a B1 cam in this week. Now I’m getting a small amount of rasp around 2300rpm and it’s a lot louder than it used to be. I like it loud <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> BUT, I don’t really want the added attention from local law enforcement. So I’m thinking about a dual/dual instead. Will D/D flow as well as 2OTL?
Old 04-13-2002, 01:31 AM
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Default Re: Will SLP dual/dual flow as well as 2OTL??

Keep your 2OTL. I'm sure it looks unique on your T/A. SLP dual/dual should flow roughly about the same give or take a couple horses either way. It will probably be too quiet for you though(even with the off-road pipes).

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Old 04-15-2002, 01:52 AM
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Default Re: Will SLP dual/dual flow as well as 2OTL??

My Hawk came with the D/D and I also have the G5 cam and FLPs with the ORPs on and it is pretty much anything but quiet.
Old 04-15-2002, 07:29 AM
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Default Re: Will SLP dual/dual flow as well as 2OTL??

Its quiet when crusing right, but as soon as you hammer it, its LOUD

I've heard a car with FLP's ORP's and dual-dual before, it sounds really good because there is no rasp... <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
Old 04-15-2002, 07:54 AM
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Default Re: Will SLP dual/dual flow as well as 2OTL??

I'm still considering this one. We'll see how it sounds on Bos's car <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
Old 04-15-2002, 10:58 AM
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Default Re: Will SLP dual/dual flow as well as 2OTL??

I love my SLP dual/dual w/ FLP's, ORP, and Comp XE-R 224 cam. It's still really quiet compared to other catbacks at idle and part-throttle, but it has a NICE sound at WOT. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> It's the perfect catback IMO. I hope to have some new dyno #'s w/ the cam this week, and I'll make some runs w/ the cutout closed and open. I know of a local heads/cam car that dynoed 429 RWHP and 386 RWTQ through the SLP dual/dual! <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" />
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