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Suitcase muffler exposed

18K views 28 replies 11 participants last post by  RoadiJeff 
#1 ·
Here are a few pics of the inside of the suitcase muffler if anyone was curious.
 

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#2 ·
Ewwww thats yucky lol....

Good post bro, really it is. Shows why the stock setup is so quiet and on how thats designed, plenty of power can be had with a good cat back.
 
#13 ·
Wow I never thought that the suitcase was so restrictive with all that back and forth piping.


So the definitive answer the next time someone ask is :

Drop suitcase for performance.

Drop resonators for sound.

Thanks
 
#17 · (Edited)
Catbacks make very little power...10-20 hp at most and that's on supercharged/turbocharged cars. Less on N/A cars. Most power to be gained from is from high flowing catalytic converters or lack thereof, but then you will be responsible for killing the polar bears. For those who find solace in dyno numbers, here's a couple from a Wrangler.

But then again, most people incorrectly associate noise with power...so it shouldn't be a problem to have a "manliness" boost with more decibels than horsepower.
 
#18 ·
Catbacks make very little power...10-20 hp at most and that's on supercharged/turbocharged cars. Less on N/A cars. Most power to be gained from is from high flowing catalytic converters or lack thereof, but then you will be responsible for killing the polar bears. For those who find solace in dyno numbers, here's a couple from a Wrangler.

But then again, most people incorrectly associate noise with power...so it shouldn't be a problem to have a "manliness" boost with more decibels than horsepower.
well I never said noise makes power. I did say "Little Boost" and its not horse power that matters. it's the torque, something a decent cat back makes the most of. I don't want to start an internet war but the biggest gains are not gonna be from hi-flo cats, but going to headers from the log style manifolds. the biggest way to boost power now days is in the tune and the reason intakes and exhaust don't make a lot without an aftermarket tune, is because the factory does not tune for peak power but the best of both efficiency and power.

I still stick to my guns that (at least on my 3.7) that a fully setup exhaust will be worth up to 30 on a n/a.

BTW I have seen turbo cars pick up as much as 60hp from freeing up the exhaust
 
#19 ·
I did increase the power, how much I don't know, but I can definitely feel the difference. Decibels do increase with horse power, but just because you increase the decibels, doesn't mean you increased the HP. I want to buy a tuner, but I can't see buying one for the price they want. If they did what my Access Race Tuner did for my WRX, I'd buy one tomorrow.
 
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