[94boosted]

Two part question to anyone that knows, what does everything down stream of the second cats weigh on our cars? The factory x-pipe and muffler assembly?

And which aftermarket cat-back exhaust system is the lightest? Any benefit to even switching out the factory x-pipe or better off just getting an axel back?

The car is a 2017 SS 1LE (w/ NPP) and as much as I'd like to be able to do long tube headers I can't as this is an autocross car so I can only change things D/S of the cats.

The Mach-X kit from Solo performance seems to be the lightest/simplest design of any I've seen yet but I'm not sure if it'll even work on my car

https://solo-performance.com/pe-mach-x-std

[bpang1234]

I'm no expert but I don't think you will find an exhaust that will be significantly lighter than the average aftermarket exhaust up for sale. From my understanding, they all use about the same materials so no real weight savings unless you find one being made out of some exotic material or one that eliminates the mufflers and/or a stretch of tubing.

[94boosted]

Originally Posted by bpang1234

I'm no expert but I don't think you will find an exhaust that will be significantly lighter than the average aftermarket exhaust up for sale. From my understanding, they all use about the same materials so no real weight savings unless you find one being made out of some exotic material or one that eliminates the mufflers and/or a stretch of tubing.

That's the thing with the solo performance systems their axel-back (https://solo-performance.com/pe-cama...pipes-auto-std) effectively removes the mufflers and their cat-back (https://solo-performance.com/pe-mach-x-std) consolidates the mufflers and x-pipe into one piece.

I know I'm not going to find 25, 30lbs+ but even 15-20lbs would be nice.

[JonD]

I’m a fan of ARH but sadly I didn’t weigh the sections before it was installed.
I know the whole system “headers back” dropped about 40lbs from OEM w/NPP

[Umbriel]

Any of the track options from just about anyone are basically straight pipes with no mufflers so they would be pretty light compared to stock.

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[bpang1234]

Originally Posted by JonD

I’m a fan of ARH but sadly I didn’t weigh the sections before it was installed.
I know the whole system “headers back” dropped about 40lbs from OEM w/NPP

I forgot someone weighed a few items: https://www.camaro6.com/forums/showthread.php?t=442883

[G2K]

From npp to hookers single transverse catback exhaust only saved 8lbs. Which was the real reason i bought it. Waste of $$$ car does sound good tho. Oh 4hp/16tq gains proven on a dyno.

Like someone said earlier. Might want to look into something custom like out of titanium. Headers is where you would experience the most lbs lost but you said you can swap those. So your only choice is muffler delete, save about 20-25lbs and and sound like dudu or spend 4-5K on a custom made titanium exhaust. Im on that boat and contemplating it. Catback is around 80-90lbs. Titanium should be in the 15-20lbs.

To many it wont be worth it.

[94boosted]

Originally Posted by bpang1234

I forgot someone weighed a few items: https://www.camaro6.com/forums/showthread.php?t=442883

Wow the stock mufflers (axelback) are 40lbs

Originally Posted by G2K

From npp to hookers single transverse catback exhaust only saved 8lbs. Which was the real reason i bought it. Waste of $$$ car does sound good tho. Oh 4hp/16tq gains proven on a dyno.

Like someone said earlier. Might want to look into something custom like out of titanium. Headers is where you would experience the most lbs lost but you said you can swap those. So your only choice is muffler delete, save about 20-25lbs and and sound like dudu or spend 4-5K on a custom made titanium exhaust. Im on that boat and contemplating it. Catback is around 80-90lbs. Titanium should be in the 15-20lbs.

To many it wont be worth it.

I take it this is the one you have?
https://www.phastekperformance.com/2...xhaust-cb2.htm

They make that system in an axel-back also (https://www.westcoastcamaro.com/p-23...l-mode-exhaust) but don't publish any weight savings over stock so I take it it's negligible.

[G2K]

Originally Posted by 94boosted

Wow the stock mufflers (axelback) are 40lbs




I take it this is the one you have?
https://www.phastekperformance.com/2...xhaust-cb2.htm

They make that system in an axel-back also (https://www.westcoastcamaro.com/p-23...l-mode-exhaust) but don't publish any weight savings over stock so I take it it's negligible.

Correct, I have the one on the second link but a catback (like the first link)...
Axle back section was 3lbs lighter than the stock. I weighed them both when doing the swap.... these cars have really heavy exhaust.

[94boosted]

Originally Posted by G2K

Correct, I have the one on the second link but a catback (like the first link)...
Axle back section was 3lbs lighter than the stock. I weighed them both when doing the swap.... these cars have really heavy exhaust.

Cool thanks G2K. How they can claim that an axel-back alone can gain 15.24 HP & 21.49 LB.FT torque boggles my mind though

[G2K]

Originally Posted by 94boosted

Cool thanks G2K. How they can claim that an axel-back alone can gain 15.24 HP & 21.49 LB.FT torque boggles my mind though

I agree, only reason why i bought it was to save weight and ended up being a waste of money.... So I would say just for sound purposes....

Hate how expensive exhausts are for these cars.... no excuse for it other than the fact that its a camaro with a corvette engine so prices must be almost the same the stupid "corvette" tax

[Mcmillion]

That mach x would be cool, do they make it for 6th gens? I've only seen guys with the axlebacks with the j-pipes.

[D K]

Not directly related, but I had a titanium exhaust on my FRS and it was featherlight compared to the the stainless system I replaced it with.

If I find some ti straight pipe, I will consider cutting out the straight sections of the exhaust and replacing it with ti.
I'm not gonna mess with any of the curved sections.

[G2K]

Originally Posted by D K

Not directly related, but I had a titanium exhaust on my FRS and it was featherlight compared to the the stainless system I replaced it with.

If I find some ti straight pipe, I will consider cutting out the straight sections of the exhaust and replacing it with ti.
I'm not gonna mess with any of the curved sections.

Rule of thumb is 1/3 the weight of stainless.... curved sections is what makes Ti expensive since most need to be pie cut.... i learned that they are starting to make angles in Ti but still not everyone welds Ti (the correct way) so those who do charge an arm and a leg.... Never thought of your pov; straight sections will save weight no doubt... but i think it would look messy, plus in my car since i already have an aftermarket exhaust i would be damaging it. But still good idea.

I saw a company do the mid section for their Shop corvette C7... SS section was like 35lbs and in titanium it was 8lbs 9oz proving factual the 1/3 rule of thumb.