Resonators: Keep or Cut? - Pontiac G8 Forum: G8 Forums - G8Board.com
Exhaust Tech Headers, Catbacks, Mufflers, lack of mufflers

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post #1 of 20 (permalink) Old 08-12-2019, 11:47 AM Thread Starter
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Resonators: Keep or Cut?

So I'm doing a DIY exhaust setup after putting in Solo Axle backs earlier in the year. My plan is to delete the mid muffler and replace it with an X-pipe and later this year Kooks catted Shortys. I can't decide whether I want to keep the resonators or not. Own their own do they serve a purpose like reducing cabin drone and would removing them make the car too loud?

2009 SRM G8 GT w/ Premium Package

Current Mods:

Solo Axle Back Exhaust w 3.5 Tips + GXP Rear Diffuser

Planned Mods:

Replace all incandescent lighting with LED bulbs | Roto Fab CAI | Spyder Black Projector Headlights w/ LED DRL Bar | Holden iQ radio conversion | HSV Steering Wheel | Pypes LT Tri Y Headers
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post #2 of 20 (permalink) Old 08-12-2019, 12:56 PM
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You are doing it wrong. Shoulda bought headers and X pipe first and left the mufflers alone. Now you're going to end up up with a annoyingly loud car once you put headers on. At least you don't have a rowdy cam.
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post #3 of 20 (permalink) Old 08-12-2019, 01:10 PM
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Should have just waited and bought the Solo full Mach Shorty Catback with the connection to Kooks headers. Not of fan of hacking and cutting an exhaust. I like things clean.

You also have option to get what's missing from Solo and hook it up to your axlebacks.

Not sure how the car would sound, cant help you on that.

2009 SRM PONTIAC G8 GT
VCM OTR Cold Air Intake
Kooks Long Tube Headers / HF Cats
Solo Mach Shorty Catback
Continental Extreme Contact DWS6 Tires
Shadow Chrome Camaro SS Wheels
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post #4 of 20 (permalink) Old 08-12-2019, 01:33 PM Thread Starter
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Quote:
Originally Posted by GTRenegade911 View Post
Should have just waited and bought the Solo full Mach Shorty Catback with the connection to Kooks headers. Not of fan of hacking and cutting an exhaust. I like things clean.

You also have option to get what's missing from Solo and hook it up to your axlebacks.

Not sure how the car would sound, cant help you on that.
I had to do something to it. One of the mufflers were rusted completely and sounded like a fart box at high speeds (not to mention the horrible drone).

Getting the Solo completion kit is an option too.

2009 SRM G8 GT w/ Premium Package

Current Mods:

Solo Axle Back Exhaust w 3.5 Tips + GXP Rear Diffuser

Planned Mods:

Replace all incandescent lighting with LED bulbs | Roto Fab CAI | Spyder Black Projector Headlights w/ LED DRL Bar | Holden iQ radio conversion | HSV Steering Wheel | Pypes LT Tri Y Headers
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post #5 of 20 (permalink) Old 08-12-2019, 02:18 PM
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If you only want to do it once, get a complete system and forget cutting it up.

I have a perfectly good "already bastardized" mid pipe with the solo axle backs that went with them. That said, it would be pick-up only. Absolutely NO way that I'm going to be able to ship the full section in an economical way. So if you aren't in NC.... well.... pretty much a non-starter. I could cut you a deal though.
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'09 PSM G8 GT - OPG Intake, DOD-Delete w/ Stage 1C 218/229 .600 Lift 117.5LSA, Kooks 1 7/8 Mids, Solo Axle-Back w/ X-Pipe, SuperPro Bushings (Front and Rear). BMR Sway Bars (Red)
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post #6 of 20 (permalink) Old 08-12-2019, 02:58 PM Thread Starter
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Quote:
Originally Posted by Jova007200 View Post
If you only want to do it once, get a complete system and forget cutting it up.
I'm starting to lean that way. I'm looking at the Solo Street Race kit and then selling my axle backs to recover the cost.

2009 SRM G8 GT w/ Premium Package

Current Mods:

Solo Axle Back Exhaust w 3.5 Tips + GXP Rear Diffuser

Planned Mods:

Replace all incandescent lighting with LED bulbs | Roto Fab CAI | Spyder Black Projector Headlights w/ LED DRL Bar | Holden iQ radio conversion | HSV Steering Wheel | Pypes LT Tri Y Headers
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post #7 of 20 (permalink) Old Today, 11:39 AM
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I'm kinda in this boat too. It wasn't about "doing it right" from the get go, it was that this car is a DD that the wife has to be able to ride in, not be annoyed by a loud exhaust and spending a lot on exhaust wasn't in the game plan. I already have "LOUD" covered with the GTO and 3/4 LOUD with the V.

So I did the Solo Axle backs. Definitely better than the mufflers of death from the factory. The issue I have is up until 2,500 rpm, they sound REALLY good. Anything north of 2,500rpm (especially at shift points), and just before WOT, it almost seems as though it's "weezing".

Overall, I like the deep mellowness, but would like a little more "throatiness." As such, I am kinda looking at the same. Do I delete the mid-muffler and put an "X" pipe in? Do I delete the pup resonators?

I don't plan on doing any headers though.



Summer Toys:

2004 Pontiac GTO: IBM M6, 405 rwhp & 400 lbs-ft of torque.
Mods? Yes!

2006 Cadillac STS-V: Light Platinum Metallic, 412 rwhp & 472 lb-ft of torque. Mods? Yes!

Daily Drivers/Vehicles subject to natures wrath:
1999 Chevrolet Suburban LT 4x4: Sunset Gold Metallic
2009 Pontiac G8 GT: Sport Red Metallic
2009 Chevrolet Impala SS: Victory Red
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post #8 of 20 (permalink) Old Today, 12:51 PM
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IMHO: If you delete all the mufflers, it's obnoxiously loud, resonators or not. The "cheap" sound upgrade with all else stock is the axlebacks. To do a performance exhaust upgrade: replace it all, keeping some sort of mufflers in the back. The need for resonators will be subjective. Me, I'd have some.

2009 SRM GT - Premium, Sport, Sunroof - HSV triple gauges and trim, HSV Supersport Red/Black Steering Wheel, GXP rear sway bar, GXP Diffuser, Rotofab, SOLO Axlebacks, Magnaflow Cats, Red Hot shift knob, Autodim mirror, Removed intake cover, Chrome lug nut covers, Infinity door speakers, 10" DVC RF Sub, Switchbacks, Slotted rotors & Braided stainless brake hoses, Cortex tuner



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post #9 of 20 (permalink) Old Today, 01:00 PM
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Again though, I'm not completely satisfied with just the axlebacks.



Summer Toys:

2004 Pontiac GTO: IBM M6, 405 rwhp & 400 lbs-ft of torque.
Mods? Yes!

2006 Cadillac STS-V: Light Platinum Metallic, 412 rwhp & 472 lb-ft of torque. Mods? Yes!

Daily Drivers/Vehicles subject to natures wrath:
1999 Chevrolet Suburban LT 4x4: Sunset Gold Metallic
2009 Pontiac G8 GT: Sport Red Metallic
2009 Chevrolet Impala SS: Victory Red
2015 Chrysler Town & Country Limited Platinum: Black
2007 Chrysler Town & Country Limited: Medium Blue Pearl Metallic
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post #10 of 20 (permalink) Old Today, 01:57 PM
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Yeah. I looked into an x-pipe after putting on axlebacks. Found a youtube clip and made a quick decision to skip it.

2009 SRM GT - Premium, Sport, Sunroof - HSV triple gauges and trim, HSV Supersport Red/Black Steering Wheel, GXP rear sway bar, GXP Diffuser, Rotofab, SOLO Axlebacks, Magnaflow Cats, Red Hot shift knob, Autodim mirror, Removed intake cover, Chrome lug nut covers, Infinity door speakers, 10" DVC RF Sub, Switchbacks, Slotted rotors & Braided stainless brake hoses, Cortex tuner



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post #11 of 20 (permalink) Old Today, 02:35 PM
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Do you have that specific clip available?

My issue with any sound clip is trying to sort out the quality of the clip itself before basing judgement.



Summer Toys:

2004 Pontiac GTO: IBM M6, 405 rwhp & 400 lbs-ft of torque.
Mods? Yes!

2006 Cadillac STS-V: Light Platinum Metallic, 412 rwhp & 472 lb-ft of torque. Mods? Yes!

Daily Drivers/Vehicles subject to natures wrath:
1999 Chevrolet Suburban LT 4x4: Sunset Gold Metallic
2009 Pontiac G8 GT: Sport Red Metallic
2009 Chevrolet Impala SS: Victory Red
2015 Chrysler Town & Country Limited Platinum: Black
2007 Chrysler Town & Country Limited: Medium Blue Pearl Metallic
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post #12 of 20 (permalink) Old Today, 03:29 PM
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Ok, I found a few that were decent quality. One actually had all stock except solo-axlebacks and then removed the muffler and did the x-pipe.

Not so much "louder", but changes the tone, which is what I want.


With that said, I just ordered a Jones SXP-3 (2.25" ID) X-Pipe from Summit. Was ready to pull the trigger on the Magnaflow, but for $21, this is $80 cheaper.




Summer Toys:

2004 Pontiac GTO: IBM M6, 405 rwhp & 400 lbs-ft of torque.
Mods? Yes!

2006 Cadillac STS-V: Light Platinum Metallic, 412 rwhp & 472 lb-ft of torque. Mods? Yes!

Daily Drivers/Vehicles subject to natures wrath:
1999 Chevrolet Suburban LT 4x4: Sunset Gold Metallic
2009 Pontiac G8 GT: Sport Red Metallic
2009 Chevrolet Impala SS: Victory Red
2015 Chrysler Town & Country Limited Platinum: Black
2007 Chrysler Town & Country Limited: Medium Blue Pearl Metallic
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post #13 of 20 (permalink) Old Today, 03:30 PM
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No. It was a few years back. It was probably a result of a search for "solo axleback".

2009 SRM GT - Premium, Sport, Sunroof - HSV triple gauges and trim, HSV Supersport Red/Black Steering Wheel, GXP rear sway bar, GXP Diffuser, Rotofab, SOLO Axlebacks, Magnaflow Cats, Red Hot shift knob, Autodim mirror, Removed intake cover, Chrome lug nut covers, Infinity door speakers, 10" DVC RF Sub, Switchbacks, Slotted rotors & Braided stainless brake hoses, Cortex tuner



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post #14 of 20 (permalink) Old Today, 03:33 PM
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Another...




Summer Toys:

2004 Pontiac GTO: IBM M6, 405 rwhp & 400 lbs-ft of torque.
Mods? Yes!

2006 Cadillac STS-V: Light Platinum Metallic, 412 rwhp & 472 lb-ft of torque. Mods? Yes!

Daily Drivers/Vehicles subject to natures wrath:
1999 Chevrolet Suburban LT 4x4: Sunset Gold Metallic
2009 Pontiac G8 GT: Sport Red Metallic
2009 Chevrolet Impala SS: Victory Red
2015 Chrysler Town & Country Limited Platinum: Black
2007 Chrysler Town & Country Limited: Medium Blue Pearl Metallic
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post #15 of 20 (permalink) Old Today, 03:34 PM
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I definitely hear that extra sound.

The clip I remember had drive-bys to compare.

2009 SRM GT - Premium, Sport, Sunroof - HSV triple gauges and trim, HSV Supersport Red/Black Steering Wheel, GXP rear sway bar, GXP Diffuser, Rotofab, SOLO Axlebacks, Magnaflow Cats, Red Hot shift knob, Autodim mirror, Removed intake cover, Chrome lug nut covers, Infinity door speakers, 10" DVC RF Sub, Switchbacks, Slotted rotors & Braided stainless brake hoses, Cortex tuner



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post #16 of 20 (permalink) Old Today, 03:37 PM
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Quote:
Originally Posted by CMNTMXR57 View Post
It does sound good there. It's hard to judge how loud it is in person though.

2009 SRM GT - Premium, Sport, Sunroof - HSV triple gauges and trim, HSV Supersport Red/Black Steering Wheel, GXP rear sway bar, GXP Diffuser, Rotofab, SOLO Axlebacks, Magnaflow Cats, Red Hot shift knob, Autodim mirror, Removed intake cover, Chrome lug nut covers, Infinity door speakers, 10" DVC RF Sub, Switchbacks, Slotted rotors & Braided stainless brake hoses, Cortex tuner



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post #17 of 20 (permalink) Old Today, 03:41 PM
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Well, I'll find out.

It'll be the Wife test on the weekend. If I get a "WHAT DID YOU DO..." we know it's substantially louder.



Summer Toys:

2004 Pontiac GTO: IBM M6, 405 rwhp & 400 lbs-ft of torque.
Mods? Yes!

2006 Cadillac STS-V: Light Platinum Metallic, 412 rwhp & 472 lb-ft of torque. Mods? Yes!

Daily Drivers/Vehicles subject to natures wrath:
1999 Chevrolet Suburban LT 4x4: Sunset Gold Metallic
2009 Pontiac G8 GT: Sport Red Metallic
2009 Chevrolet Impala SS: Victory Red
2015 Chrysler Town & Country Limited Platinum: Black
2007 Chrysler Town & Country Limited: Medium Blue Pearl Metallic
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post #18 of 20 (permalink) Old Today, 04:22 PM
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I may never know what my wife knows about what I've done to my car. Sometimes there's something that is blatantly obvious to me that she never mentions. lol

2009 SRM GT - Premium, Sport, Sunroof - HSV triple gauges and trim, HSV Supersport Red/Black Steering Wheel, GXP rear sway bar, GXP Diffuser, Rotofab, SOLO Axlebacks, Magnaflow Cats, Red Hot shift knob, Autodim mirror, Removed intake cover, Chrome lug nut covers, Infinity door speakers, 10" DVC RF Sub, Switchbacks, Slotted rotors & Braided stainless brake hoses, Cortex tuner



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post #19 of 20 (permalink) Old Today, 06:45 PM
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Nobody wants to be earfuqed by a 13 second car. Figure it out.
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post #20 of 20 (permalink) Old Today, 07:42 PM
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Thanks for your input.



Summer Toys:

2004 Pontiac GTO: IBM M6, 405 rwhp & 400 lbs-ft of torque.
Mods? Yes!

2006 Cadillac STS-V: Light Platinum Metallic, 412 rwhp & 472 lb-ft of torque. Mods? Yes!

Daily Drivers/Vehicles subject to natures wrath:
1999 Chevrolet Suburban LT 4x4: Sunset Gold Metallic
2009 Pontiac G8 GT: Sport Red Metallic
2009 Chevrolet Impala SS: Victory Red
2015 Chrysler Town & Country Limited Platinum: Black
2007 Chrysler Town & Country Limited: Medium Blue Pearl Metallic
CMNTMXR57 is online now  
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