its dumb question time

[AvalancheSVT]

can an aftermarket catback actually make power without a tune?

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[Ock]

i noticed no diff in power. i got the corsa cat back extreme. just loud as f

 

[bonz50]

if it is the only mod on the car I would say no. this aint a foxbody where a cat back could actually add a few. times are different and stock exhausts are actually pretty good aside from the sound under most instances make just as much power as the axle/catbacks do without a tune. maybe you save a few pounds of weight (I think my roush catback dropped about 15lbs from stock IIRC)

 

[Zrussian13]

I don't know about peak power but the borla s type adds around 30hp at lower rpms according to some dyno numbers I saw a while ago. I picked one up with my turbo kit but installed it first and it's definitely noticeable how it pulls. I swapped the x pipe out for borlas resonator to quiet it down and the extra umph was gone. Main difference is the x is 3" and the resonator is only 2.5" through until the connects.

 

[RazzaRossa]

I replaced the stock suitcase resonator with the Borla Switchfire. They claim 2% gain over a common X-pipe. That's probably 15-20 hp, but the sound is nowhere near as raspy as x-piped cars I've heard. No droan either. Best mod at this point for me.

 

[Cory S]

No such thing as a dumb question.

 

[EFI]

can an aftermarket catback actually make power without a tune?

No, and it won't make anymore power even after the tune. At least not due to the exhaust, the tune itself will gain power.

 

[Prodigal]

I have one,,,,,
Explain to me the oil pump gear upgrade mod. What, why and how?
Thanks

 

[Cory S]

I have one,,,,,
Explain to me the oil pump gear upgrade mod. What, why and how?
Thanks

Google. OPG + Mustang 6g

 

[Prodigal]

Google. OPG + Mustang 6g

Ok, so a solution in search of a problem on 3rd Gen coyotes from my brief research. Thanks.

 

[Shifting_Gears]

Ok, so a solution in search of a problem on 3rd Gen coyotes from my brief research. Thanks.

All gen coyotes can benefit.

 

[Veteran]

Fwiw, I’ve read more posts About poor quality aftermarket opg, than I’ve seen about broken oem opg .
just sayin …….

 

[DopamineQuest]

can an aftermarket catback actually make power without a tune?

I saw a couple dyno graphs from reputable places a few years ago showing that a borla atak 3 inch catback was worth 8-10 whp on Gen 3's...but who knows. I couldn't really tell a difference with just the catback.

 

[Bulldog9]

Catback alone will make it sound faster, maybe rev to redline a little faster (which feels like more power). Even a tune is limited. I'd be looking at long tube headers and high flow cats with the exhaust. Catbacks just make more noise.

 

[Skye]

Better to ask the question and receive feedback, versus not doing so, laying out the $$$ and realizing there was little, if any, HP/performance change. I'd think you'd gain a handful of HP from the swap, but virtually every exhaust post I've read (FWTW) the person was attempting to achieve a particular sound. Any HP gains were certainly welcome.

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