3v V10 exhaust setup
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5th Wheeling
Joined: Mar 2025
Posts: 34
Likes: 22
3v V10 exhaust setup
I got the truck with no cats and a 2 into 1 muffler and lets just say its way to loud. So I was thinking something along the lines of a true dual setup with an h pipe where the factory connector would have been with 2.5 in pipe all the way back with borla pro xs mufflers. I'd rather not have to buy new cats but if some new high flow cats are going to help it a lot I might consider it. I'd like it to be as quite as possible without putting cats back on but still have good flow. Or would a smooth transition y pipe to a single in/out muffler be better for low to midrange power
FTE Community Team
Joined: Dec 2023
Posts: 8,783
Likes: 4,237
From: sussex county, nj
having owned a 05 v10, removing the cats DID make for some very unfavorable driving , same for cat backs, i tried 3 brands went back to bone stock , even spent a few days strapped down on a dyno, finding it lost power without back pressure ,while a 03 2 valve save for the ugly sound made more power with a freer flowing exhaust
sadly the 10's will never sound like a 8,
sadly the 10's will never sound like a 8,
8th Gear
Joined: Aug 2012
Posts: 8
Likes: 4
From: New England
Back pressure -
Would you say that the factory PCM firmware is optimized for the back pressure of the oem exhaust, and that 'improving' the exhaust degrades performance ? If so, is there a tune available from a 3rd party that can adjust/compensate for this ?
FTE Community Team
Joined: Jan 2019
Posts: 10,739
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V-10s are notoriously difficult to make sound good in the aftermarket.
I personally like the sounds that they make, until I hear a bad exhaust slapped on one. I've heard a few that sound nice with aftermarket exhaust, and of those, when I could catch up to one, they were always single exhaust and likely had cats in them because they were plated in an emissions area.
I personally like the sounds that they make, until I hear a bad exhaust slapped on one. I've heard a few that sound nice with aftermarket exhaust, and of those, when I could catch up to one, they were always single exhaust and likely had cats in them because they were plated in an emissions area.
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