3.15" vs 4" DP and Exhaust

[travsam89]

Anyone know the gains of a 4" exhaust system vs the factory 3.15"? I dont see too many people running a 4" DP outlet and catback. Curious as to why there isnt more people running this setup..

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[XtremeMaC]

Anyone know the gains of a 4" exhaust system vs the factory 3.15"? I dont see too many people running a 4" DP outlet and catback. Curious as to why there isnt more people running this setup..

There are many people with 4"+ cat like the 5" CG Precision DS-1.... As that's the biggest bottleneck and easiest way to improve exhaust note, not many people opt in for full or catback exhaust... It's pretty much proven that catback gains are minimal on this vehicle...
Gains is higher flow. Check hp gains on vendor's website or other numerous cat threads ..

 

[travsam89]

There are many people with 4"+ cat like the 5" CG Precision DS-1.... As that's the biggest bottleneck and easiest way to improve exhaust note, not many people opt in for full or catback exhaust... It's pretty much proven that catback gains are minimal on this vehicle...
Gains is higher flow. Check hp gains on vendor's website or other numerous cat threads ..

Im talking outlet size of the DP, only one i know of is the ETS pro series which has a 4" outlet unlike 99% of the others with a 3.15" outlet

 

[METAL]

Reason is terrible 4" cbe offerings.

-boostin performance single exit that hangs too low.
-ETS customizable system with not so great tips and no valve.

 

[travsam89]

Reason is terrible 4" cbe offerings.

-boostin performance single exit that hangs too low.
-ETS customizable system with not so great tips and no valve.

Yea that makes sense and i agree with you on both of those exhausts flaws. Thats the worst looking single ive seen yet

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