Borla S-type 2.5" vs 3.0"

[Aras]

Hello everyone.

First post here I recently bought a 16 GT PP and looking to upgrade to a new catback system. From what I researched so far, Borla S-type looks like a great option for tone and volume on a daily driver. The part that got me confused is the piping diameters offered. Basically if I’m going to keep this car mostly stock other than a CAI and a tune upgrade, should I go with 2.5” or 3” piping in order not to lose any low-end power and gain performance in general as much as possible? I hear 3” setups sounds louder but there seems to be some loss of low-end torque? Are there any dyno comparisons? Really looking for some help in here. Thanks in advance

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[Sasuketr]

Will you be going force induction? If so then 3.0" it is, not, stick with the 2.5". I have the 2.5" stype and it sounds brutal. You will love it.

 

[Aras]

Thanks for input! Not planning to go FI for sure. Anyone have 2.5 vs 3.0 dynos?

 

[2015 Silver GT]

Catbacks aren't worth any horsepower so a dyno between the two would be worthless.

 

[AmericanLegend]

Will you be going force induction? If so then 3.0" it is, not, stick with the 2.5". I have the 2.5" stype and it sounds brutal. You will love it.

+1.
2.5" is more then enough if you're not going to supercharge your car.

The Borla S-Type sounds great! Nice and aggressive on cold starts...but not obnoxious.
Zero drone, mellow when cruising.
Normal acceleration & deceleration it sounds strong.
Hard acceleration the Borla S-Type is very aggressive...you and those around you will know you've got a 5.0L.

I've gotten many compliments. Couldn't be happier with the Borla S-Type.

 

[paulrkiii]

+1.
2.5" is more then enough if you're not going to supercharge your car.

The Borla S-Type sounds great! Nice and aggressive on cold starts...but not obnoxious.
Zero drone, mellow when cruising.
Normal acceleration & deceleration it sounds strong.
Hard acceleration the Borla S-Type is very aggressive...you and those around you will know you've got a 5.0L.

I've gotten many compliments. Couldn't be happier with the Borla S-Type.

Perfectly said. I got the 2.5, although I do plan on eventually installing a whipple it's a few years away so figured no reason to go with the 3 until then.

 

[beefcake]

Can't go wrong either way. Let me know we have great forum pricing

 

[jayman33]

Either will work fine, 2.5 is only limiting once you get up there in HP. Let us know if we can help you out at all!

 

[Aras]

Thank for the input guys! Just ordered my 2.5" s-types. Thanks beefcake

 

[gsxr1300]

I made 765 RWHP with Borla touring cat back 2.5"

 

[beefcake]

Thank for the input guys! Just ordered my 2.5" s-types. Thanks beefcake

yvw

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