Good afternoon everyone. Are straight pipe worth it? I know there illegal but depends on where you live one of my cousins has a 2015 Honda Civic Si with a 6 speed manual plans to straight pipe it and was wondering as to if he should go for it or not he wants it more sound he has other mods added for improved performance headers, cold air intake and a spitfire tuning performance chip. What yall think should he go for a straight pipe or nah?
No.
Many conversations about this on the forum, so I'll abbreviate my response: you're messing with the back pressure of the exhaust and will actually lose torque.
As for the legal ramifications, everyone is right: they are illegal throughout the states by federal law.
They also sound terrible and will vibrate your interior apart.
They also sound terrible and will vibrate your interior apart.
Well
I know there illegal but depends on where you live
Federal law, and illegal on public streets nation-wide.
I've heard them referred to as clown cars.
Good money after bad.
How many cousins do you have? Do they all drive Civics like you?
https://carkiller.com/scottykilmer/qa/muffler-delete-worth-it-on-a-civic/
They do
I have 8 cousins and they drive Civics but different year
Loud doesn't mean fast is all I have to say. If your car is loud and fast, you're the man. Your car is loud and slow, you are an idiot.
I always laugh when someone passes me sounding like a Lamborghini going 150. But it’s just a lousy slow Honda going 15 mph faster than me.
What are the penalties for running that way in his area? (Aside from the fact that whether legal or not he'll be a nuisance to everyone around him.)
He lives in Greenville NC where law enforcement are chill type they don't really care about loud vehicles or dark window tint
Even if police don't pull you over all it takes is for an annoyed citizen to file a complaint. (Guess how I know.) Save your pennies for the fines.
True
Been discussed before. Please do a search:
https://carkiller.com/scottykilmer/qa/straight-pipe-2/#post-111998
Thanks
I have a neighbor who is a grown man that has straight pipe(s) on one of his cars. It's a Japanese import of some type with right hand drive. You can hear the car all through the neighborhood. Yes, it's annoying.
I bet
There is the legal argument, which many have discussed. TL;DR, it’s illegal.
On the technical side, performance wise, there should theoretically be a teeny tiny increase in horsepower, because gases are allowed to escape the exhaust quicker, and cylinders don’t have to work as hard to push the gases out of the combustion chamber.
I have never done the numbers myself, but my guess is the super duper tiny increase in horsepower, is not usually worth it on modern cars. But hey, if they really knows what he is doing, then sky is the limit.
Oh okay
It actually results in a loss of torque. And torque is what actually moves the car.
As mentioned above, it is illegal.
One Saturday evening as a teen I decided to drop the mufflers and run straight pipes on my 350 small block.
Since it was a V8 it sounded great, however the decibels and droning was off the chart.
That same evening the mufflers were bolted back on.
Personally, I would not do it.
I once drove 8 hrs with a guy who put a loud exhaust system on his truck. It was maddening. At the 1st stop, I bought some earplugs and wore them for the rest of the trip. Ruined a perfectly good vehicle if you ask me.
Just get a performance exhaust/muffler. Magnaflow makes one for that car.
