Dumped Y pipe

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Mar 10, 2020 | 07:13 PM

Newbomb

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From: Indiana

Dumped Y pipe

Due to my BMR Extreme torque arm crossmember, space is limited and I’m going to have to run a Y pipe, I’d like to dump it after a 14-16” dynomax bullet, anyone on here have that setup? Y pipe is from speed engineering.

Mar 10, 2020 | 07:46 PM

Newbomb

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From: Indiana

I’d also like to cut the y pipe merge outlet to a 3.5”

Mar 10, 2020 | 07:59 PM

Bspeck82

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https://ls1tech.com/forums/generatio...ut-dumped.html

Easy and lightweight. Id probably try to run it side exit in front passenger tire with maybe an oval slash cut to cut down on resonance and drone.

Mar 10, 2020 | 08:23 PM

Newbomb

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Since my Y pipe is stainless, do I have to use a stainless muffler? To be welded...or can a mild steel muffler be welded to the stainless Y?

Mar 10, 2020 | 08:47 PM

Bspeck82

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Quote:

Originally Posted by Newbomb

Since my Y pipe is stainless, do I have to use a stainless muffler? To be welded...or can a mild steel muffler be welded to the stainless Y?

Welding mild is fine. Depends where you live. If they salt the roads get stainless

Mar 14, 2020 | 06:56 AM

Cstone812

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From: Southern Indiana

It will be extremely loud. Not sure how much you care about noise level. I've got a similar setup but I want to move to a cat back with a cutout or something.

Mar 14, 2020 | 12:48 PM

wannafbody

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Try to find a boom tube and exit it in front of the rear tire

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Mar 14, 2020 | 05:50 PM

speedfreak440

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From: Tuscaloosa, Al

I have ARH 1-7/8 LT's with 3" collectors into a catted ARH 4" Y, With a 4" dynomax bullet turned down at 45 degree angle it was too loud for me and the drone was pretty bad from 1950-2400 rpm, I have since changed to a 4" Flowmaster 50 Series Delta Flow also dumped at 45 degrees just in front of the axle and I love it, has about 100 rpm spot where it drones and thats it, sounds awesome and didn't give up any power at all to the bullet.

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Mar 25, 2020 | 02:02 AM

Newbomb

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From: Indiana

If I just use a 3" bullet and turn down off the Speed Engineering Y pipe, will I lose much power compared to cutting the merge back a bit and welding on a 3.5" bullet and turndown? LS1 with 243's, 228/232 cam, LS6 intake, headers.