Roush Mufflers or other Bolt On Mufflers for BOSS
6/25/11, 09:56 AM
#61
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6/25/11, 05:37 PM
#62
Cobra Member
Installed Roush axel backs tonight on my Boss 302. Also I am running a 5/8 hole in the discs. the sound is what I was looking for. The car now has Great sound from the rear along with the side. Two things I noticed. After the axel backs were in, it stoped the minor popping that you get from the side exhaust and the car seemed to breath better. I also noticed a small gain in how the car response. I also went from 16.3 MPG to 16.5MPG. The whole job took about 70 minutes with 1 jack, and 2 wrenches. Plus you shave about 25 pounds off the rear of your car. Stock mufflers are heavy.
IMO the Roush Axel backs are the best bang for the buck.
IMO the Roush Axel backs are the best bang for the buck.
6/25/11, 06:23 PM
#64
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Originally Posted by boss man
Installed Roush axel backs tonight on my Boss 302. Also I am running a 5/8 hole in the discs. the sound is what I was looking for. The car now has Great sound from the rear along with the side. Two things I noticed. After the axel backs were in, it stoped the minor popping that you get from the side exhaust and the car seemed to breath better. I also noticed a small gain in how the car response. I also went from 16.3 MPG to 16.5MPG. The whole job took about 70 minutes with 1 jack, and 2 wrenches. Plus you shave about 25 pounds off the rear of your car. Stock mufflers are heavy.
IMO the Roush Axel backs are the best bang for the buck.
IMO the Roush Axel backs are the best bang for the buck.
You get size and weight of the stock mufflers!
6/25/11, 06:32 PM
#66
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Installed Roush axel backs tonight on my Boss 302. Also I am running a 5/8 hole in the discs. the sound is what I was looking for. The car now has Great sound from the rear along with the side. Two things I noticed. After the axel backs were in, it stoped the minor popping that you get from the side exhaust and the car seemed to breath better. I also noticed a small gain in how the car response. I also went from 16.3 MPG to 16.5MPG. The whole job took about 70 minutes with 1 jack, and 2 wrenches. Plus you shave about 25 pounds off the rear of your car. Stock mufflers are heavy.
IMO the Roush Axel backs are the best bang for the buck.
IMO the Roush Axel backs are the best bang for the buck.
6/25/11, 06:55 PM
#67
Installed Roush axel backs tonight on my Boss 302. Also I am running a 5/8 hole in the discs. the sound is what I was looking for. The car now has Great sound from the rear along with the side. Two things I noticed. After the axel backs were in, it stoped the minor popping that you get from the side exhaust and the car seemed to breath better. I also noticed a small gain in how the car response. I also went from 16.3 MPG to 16.5MPG. The whole job took about 70 minutes with 1 jack, and 2 wrenches. Plus you shave about 25 pounds off the rear of your car. Stock mufflers are heavy.
IMO the Roush Axel backs are the best bang for the buck.
IMO the Roush Axel backs are the best bang for the buck.
6/25/11, 08:23 PM
#68
Cobra R Member
Two things.
The popping/crackling is the best part of driving this car daily.
Want the side exist to free up HP? Put turn down immediately where the "plate" flang is. Loud, very. Illegal, absolutely. But big flow increase.
S.
The popping/crackling is the best part of driving this car daily.
Want the side exist to free up HP? Put turn down immediately where the "plate" flang is. Loud, very. Illegal, absolutely. But big flow increase.
S.
6/25/11, 08:57 PM
#70
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The Roush Axle Backs pop/crackle all the time. Trust me, if it went away from the side pipes..the mufflers make up for it. I love the way mine decels.
6/26/11, 06:59 AM
#71
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Just ordered the Corsa Extremes. Found a great price and they had a $40 instant credit on any exhaust system over $350. Out the door shipped for $565!!!
http://www.corsaperf.com/product_dis...px?product=479
http://www.corsaperf.com/product_dis...px?product=479
http://www.youtube.com/watch?feature...&v=2nQ25LvX9lQ
6/26/11, 07:03 AM
#72
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From 5.0 Mustangs & Super Fords August Issue 14 page article on Boss:
Talking about side-pipes with spacer plate removed:
Horsepower isn't affected in any case as there is no meaningful gas flow through the side-pipes, which are purposefully mounted 90 degrees to the main gas flow at the H pipe. Think of the side-pipes as the exhaust equivalent of the induction sound tube - Fun, but nothing you'll see on a stopwatch.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
I strongly recommend getting this issue, one of the most informative article's with details provided from Tim Vaughn, RoadRunner's lead program engineer.
Talking about side-pipes with spacer plate removed:
Horsepower isn't affected in any case as there is no meaningful gas flow through the side-pipes, which are purposefully mounted 90 degrees to the main gas flow at the H pipe. Think of the side-pipes as the exhaust equivalent of the induction sound tube - Fun, but nothing you'll see on a stopwatch.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
I strongly recommend getting this issue, one of the most informative article's with details provided from Tim Vaughn, RoadRunner's lead program engineer.
6/26/11, 07:39 AM
#73
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I heard them on a friend's 5.0 at the track. It's a much deeper sound and he swears there is no drone at all at highway speeds. I've never really been able to get a good feel for exhaust sound from videos. It almost always sounds different in person A lot of other friends have Corsas on their Vettes and they sound awesome. I know it's a different car, but still really great sounding exhaust. Exhaust is one of those personal preference deals and there will be a huge range of opinions based on what each individual wants from it. Heck look at how many different sized side pipe discs people are running. 
For me, it's just far too quiet from the back of the car after having driven it for 3 months. I really like the sound from the sides, and like I said earlier the pop/crackle is kind of raw...in a good way, so I'm good either way on that.
A lot of other friends have Corsas on their Vettes and they sound awesome. I know it's a different car, but still really great sounding exhaust. Exhaust is one of those personal preference deals and there will be a huge range of opinions based on what each individual wants from it. Heck look at how many different sized side pipe discs people are running. For me, it's just far too quiet from the back of the car after having driven it for 3 months. I really like the sound from the sides, and like I said earlier the pop/crackle is kind of raw...in a good way, so I'm good either way on that.
6/26/11, 10:35 AM
#74
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I know what you mean. You can watch 5 different videos of the same exhaust and they all sound different. I've watched other videos with the Corsa Extremes and off road X pipes and they sound great.
6/26/11, 02:20 PM
#75
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Retune
I'm wondering if you have to retune the car with a exhaust change. Seems like I read somewhere if you changed the air filter with a cold air system and K&N filter you should retune the car.
6/26/11, 02:26 PM
#76
6/26/11, 03:09 PM
#77
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You've asked a question to which the answer is no, and made a statement to which the answer is yes whether it's a K&N filter, FRPP filter or other open filter used in an after-market CAI system.
