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Old 09-03-2013, 12:29 AM   #1
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Lethal performance O/R H pipe and axle backs

Anyone have any experience with a H pipe and axle backs? I have been running Bassani Axle backs, was looking to add a little deeper sound with the added bonus of picking up a few HP. Got it hooked up this evening and it is obnoxiously load.

Sounds great at idle, but as soon as you get into the gas it's LOUD..and I mean wake up the neighborhood loud. Does it break in any at all?

The Bassani's where a lot louder when I first installed them, but they seemed to mellow out after a few heat cycles. Any chance the H pipe will?

Thanks for any input, at this point I am probably taking it back off. This is my daily driver, and I work odd hours if it doesn't tame down any I will have no choice.
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Old 09-03-2013, 12:33 AM   #2
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Add some resonators or glasspacks & it'll sound awesome & not so obnoxiously loud!
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Old 09-03-2013, 12:38 AM   #3
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Ok, thanks. I remember reading adding reasonators to certain axle back systems, didn't even think of looking into it for the H pipe.

Thanks again
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Old 09-03-2013, 02:27 AM   #4
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No problem!
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Old 09-03-2013, 08:52 AM   #5
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Add some resonators or glasspacks & it'll sound awesome & not so obnoxiously loud!
Resonators and glasspacks are the same thing just a fancy name so they can mark up the price. I agree tho add resonators and it will tame the sound and make it deeper and throaty
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Old 09-03-2013, 09:02 AM   #6
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Resonators and glasspacks are the same thing just a fancy name so they can mark up the price. I agree tho add resonators and it will tame the sound and make it deeper and throaty

Ok, thanks. I was thinking they where the same thing but wasn't sure. Going to go talk to a local muffler shop today. Really hating the idea of taking it all back off.
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Old 09-03-2013, 09:40 AM   #7
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Ok, thanks. I was thinking they where the same thing but wasn't sure. Going to go talk to a local muffler shop today. Really hating the idea of taking it all back off.
Taking what off? For resonators u dont take off anything. They cut a section of the piping from the OTA pipes right behind the mid pipe and weld in the resonators.
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Old 09-03-2013, 09:44 AM   #8
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Taking what off? For resonators u dont take off anything. They cut a section of the piping from the OTA pipes right behind the mid pipe and weld in the resonators.
I mean switching the H pipe out for the stock mid pipe, putting it back stock basically. Going to give the resonators/glasspacks a try first. It needed them anyways so if I get them on there and still don't like it I will put the stock mid pipe back on.

I have only drove it about a mile with the H pipe installed. It was 10pm last night when I got done. I was afraid the neighbors where going to be very unhappy with me if I kept running up and down the street. lol
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Old 09-03-2013, 09:55 AM   #9
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I mean switching the H pipe out for the stock mid pipe, putting it back stock basically. Going to give the resonators/glasspacks a try first. It needed them anyways so if I get them on there and still don't like it I will put the stock mid pipe back on.

I have only drove it about a mile with the H pipe installed. It was 10pm last night when I got done. I was afraid the neighbors where going to be very unhappy with me if I kept running up and down the street. lol
Oh hahahaha well I say go get the resonators put on before u swap out the mid pipes.
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Old 09-03-2013, 10:44 AM   #10
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Resonators will make a huge difference! I had LT headers/ X pipe with pype bombs & it was stupid loud but with the resonators it sound beautiful! Night & day difference!
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Old 09-03-2013, 04:01 PM   #11
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Resonators will make a huge difference! I had LT headers/ X pipe with pype bombs & it was stupid loud but with the resonators it sound beautiful! Night & day difference!
offroad or catted? jus curious
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Old 09-03-2013, 04:07 PM   #12
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offroad or catted? jus curious
Catted!
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Old 09-03-2013, 05:26 PM   #13
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Catted!
was it annoyingly loud? raspy?
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Old 09-03-2013, 10:01 PM   #14
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was it annoyingly loud? raspy?
Before the glasspacks it was annoyingly loud! It was ok under 2k but once above that it was unbearable..super raspy & annoying but the glasspacks made a huge differance..they toned it down & made it deeper & less raspy!
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Old 09-03-2013, 10:24 PM   #15
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Remember, the longer the glass pack the better. For me, a 22" was more than enough to clean up my roush.
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Old 09-03-2013, 10:44 PM   #16
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Before the glasspacks it was annoyingly loud! It was ok under 2k but once above that it was unbearable..super raspy & annoying but the glasspacks made a huge differance..they toned it down & made it deeper & less raspy!
what size glass packs do you have to make it deeper?
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Old 09-03-2013, 10:46 PM   #17
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Originally Posted by sarge450 View Post
Anyone have any experience with a H pipe and axle backs? I have been running Bassani Axle backs, was looking to add a little deeper sound with the added bonus of picking up a few HP. Got it hooked up this evening and it is obnoxiously load.

Sounds great at idle, but as soon as you get into the gas it's LOUD..and I mean wake up the neighborhood loud. Does it break in any at all?

The Bassani's where a lot louder when I first installed them, but they seemed to mellow out after a few heat cycles. Any chance the H pipe will?

Thanks for any input, at this point I am probably taking it back off. This is my daily driver, and I work odd hours if it doesn't tame down any I will have no choice.
Lmao my 3.7 screamed with lethal h and Pype-Bombs and I mean SCREAMED . I loved it. And all I can say is FCK the neighbors, they don't pay my car payment.
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Old 09-04-2013, 08:16 AM   #18
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Lmao my 3.7 screamed with lethal h and Pype-Bombs and I mean SCREAMED . I loved it. And all I can say is FCK the neighbors, they don't pay my car payment.

Drove it this morning to the drop at the shop on my way to work, I actually love the sound until about 3k RPM. Then it goes incredibly raspy...

Did use it though..had a Jeep pull out right in front of me. Went around him at about 4k. Probably scared the crap out of him, I know my ears where hurting. lol The muffler shop thinks they can fix the raspy sound, I hope so I love the deep sound it has until it goes stupid.
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Old 09-04-2013, 08:21 AM   #19
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Drove it this morning to the drop at the shop on my way to work, I actually love the sound until about 3k RPM. Then it goes incredibly raspy...

Did use it though..had a Jeep pull out right in front of me. Went around him at about 4k. Probably scared the crap out of him, I know my ears where hurting. lol The muffler shop thinks they can fix the raspy sound, I hope so I love the deep sound it has until it goes stupid.
The resonators will tone down the rasp. I was going to have them installed but never got around to it. Mine was raspy after 3k but it screamed so I was happy.
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Old 09-04-2013, 11:43 AM   #20
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Just got it back, much better with the resonators. Still a little rasp about 2700 to 3200 rpm but then it goes completely away. I can deal with that, it quieted it down almost a little to much but I can live with it. I couldn't live with it the other way.

Got a nice tone to it and does seem to have picked up a little more power. No idea how much, but a little at least.

So I would say with resonators its a nice upgrade. Plan to get them, unless you like screaming load raspy exhausted cars.
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Old 09-04-2013, 06:32 PM   #21
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what size glass packs do you have to make it deeper?
I think they we're like 27in overall which is about 23in of the actual muffler part. I used thrush glasspacks I got at auto zone.

---------- Post added at 04:32 PM ---------- Previous post was at 04:30 PM ----------

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Just got it back, much better with the resonators. Still a little rasp about 2700 to 3200 rpm but then it goes completely away. I can deal with that, it quieted it down almost a little to much but I can live with it. I couldn't live with it the other way.

Got a nice tone to it and does seem to have picked up a little more power. No idea how much, but a little at least.

So I would say with resonators its a nice upgrade. Plan to get them, unless you like screaming load raspy exhausted cars.
Glad u like them. They make a hell of a difference. Crazy I felt a little more power after the glasspacks too I thought it was just me though.
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Old 09-04-2013, 06:44 PM   #22
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I think they we're like 27in overall which is about 23in of the actual muffler part. I used thrush glasspacks I got at auto zone.

---------- Post added at 04:32 PM ---------- Previous post was at 04:30 PM ----------



Glad u like them. They make a hell of a difference. Crazy I felt a little more power after the glasspacks too I thought it was just me though.
Butt dyno
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Old 09-04-2013, 10:36 PM   #23
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Butt dyno
Yup!
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Old 09-04-2013, 11:06 PM   #24
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Remember, the longer the glass pack the better. For me, a 22" was more than enough to clean up my roush.
Do you have a video of the glass pack?

---------- Post added at 12:06 AM ---------- Previous post was at 12:04 AM ----------

Would high flow cats be the same sound wise as glass packs?
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Old 09-04-2013, 11:08 PM   #25
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Do you have a video of the glass pack?

---------- Post added at 12:06 AM ---------- Previous post was at 12:04 AM ----------

Would high flow cats be the same sound wise as glass packs?
No! I have high flow cats on mine & it sounded horrible before the glasspacks!
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Old 09-04-2013, 11:08 PM   #26
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Do you have a video of the glass pack?

---------- Post added at 12:06 AM ---------- Previous post was at 12:04 AM ----------

Would high flow cats be the same sound wise as glass packs?
I don't think so. Removing the cats make it raspier. It will have two different sounds completely
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Old 09-05-2013, 09:38 AM   #27
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So what about a high flow cat H pipe?
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Old 09-05-2013, 09:57 AM   #28
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So what about a high flow cat H pipe?
High flow cat is basically a gutted cat
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Old 09-05-2013, 10:07 AM   #29
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So what about a high flow cat H pipe?
This is what I'll be doing. Custom h-pipe with 18" resonators and high flow cats
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Old 09-05-2013, 10:11 AM   #30
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This is what I'll be doing. Custom h-pipe with 18" resonators and high flow cats
They make a pre made H pipe at mrt or mpt. One of the two. Check it out before you go hacking away.
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Old 09-05-2013, 11:12 AM   #31
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High flow cat is basically a gutted cat
Lmfao no
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Old 09-05-2013, 12:17 PM   #32
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They make a pre made H pipe at mrt or mpt. One of the two. Check it out before you go hacking away.
I'm not hacking away, the performance shop is lol They do awesome fab work so I'm not too worried.

Good lookin out tho
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Old 09-05-2013, 12:40 PM   #33
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Is there really any performance with the lethal o/r H pipes? Been debating about exhaust set ups for my roush!

And sorry Charlie, someone already bought the borla atak, bbk lt and o/r x was so disappointed!!!
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Old 09-05-2013, 01:00 PM   #34
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Is there really any performance with the lethal o/r H pipes? Been debating about exhaust set ups for my roush!

And sorry Charlie, someone already bought the borla atak, bbk lt and o/r x was so disappointed!!!
If you consider 20-30 RWHP "performance" then yes
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Old 09-05-2013, 01:08 PM   #35
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If you consider 20-30 RWHP "performance" then yes
Haha no, I consider that snack What would I be looking at with that, an intake, and a tuner?
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