Cross-flow muffler?

[MaxHarvard]

I'm looking at upgrading the exhaust on my 68 Camaro and was thinking of this kit.

Anyone have any experience with it or opinions about the single muffler as opposed to dual muffler idea?

• # American Thunder Exhaust System
• 1967-74 Camaro/Firebird except convertible #
• 2.5" pipe from X-member back #
• Dual rear exit #
• 80-series Crossflow muffler #
• H-pipe and hardware included 389-17104K

[XcYZ]

I don't know that I've ever seen a 1st Gen with that Flowmaster crossflow kit on it. I wonder what it sounds like? Not that it matters, but I see that the picture doesn't match the description as it says X-pipe but shows an H-pipe.

[HAULNSS]

Originally Posted by XcYZ

I don't know that I've ever seen a 1st Gen with that Flowmaster crossflow kit on it. I wonder what it sounds like? Not that it matters, but I see that the picture doesn't match the description as it says X-pipe but shows an H-pipe.

Scott,
Put on the bifocals.

It says X-member, not X-pipe. The last line in the description states H-pipe.


I wonder what the inside of that crossflow muffler looks like? Some of them are pretty restrictive.

Randy

[XcYZ]

Originally Posted by HAULNSS

Scott,
Put on the bifocals.

It says X-member, not X-pipe. The last line in the description states H-pipe.

Doh!

[takid455]

the new cross flow mufflers are straight through packed style. not the chamber type (Flowmaster, Spintech, ect). I installed Pypes 2.5" X system on my 74 about 500 miles ago. I am told that performance vs. a chamber type is very close. system is quiet IMO. I think 50 series flowmasters are mild for reference. Fit is very good. I odered mine through BSM exhaust in MA. good price.

[Ummgawa]

My 74 Z has the set up here. Runs great and sounds great also.

[71RS/SS396]

Originally Posted by MaxHarvard

I'm looking at upgrading the exhaust on my 68 Camaro and was thinking of this kit.

Anyone have any experience with it or opinions about the single muffler as opposed to dual muffler idea?

• # American Thunder Exhaust System
• 1967-74 Camaro/Firebird except convertible #
• 2.5" pipe from X-member back #
• Dual rear exit #
• 80-series Crossflow muffler #
• H-pipe and hardware included 389-17104K

I have this set-up on my second gen it sounds great ( Flowmaster like the sound so much they gave their pick at Goodguys ) the only complaint I have with it is it 's so close to the fuel tank that it heats up the fuel and causes some vapor lock issues when stuck idling in traffic so I wrapped the muffler with DEI heat blanket and it seems to have stopped that issue but that crap is pricey ( over $100 for a 24"x30" sheet ).

[Teetoe_Jones]

i've done an install of one of those type of mufflers before onto a really low 67 Camaro convertible.

We used a 3" dual inlet/outlet Magnaflow crossflow type muffler, Dr.Gas oval tubing, and some electric cutouts. It was the best sounding car I've ever heard.









Shoot. I just realized we never took pic of the crossflow muffler back there. We put it between the gas tank and rear end, and then the pipes exited near the 1/4 panels by the rear leaf springs.

Anyways, wish I had a sound file of it too, it was so wicked sounding.

Tyler

[Teetoe_Jones]

Wait, found a pic of part of the muffler. :-)



Good way to create ground clearance for low cars. We gained 2 inches by ditching the 3" round/Flowmaster setup to the oval tubing and Magnaflow.

Tyler

[tgvettes]

Does anyone know if that oval tubing is available in stainless somewhere? Dr Gas only do mild still I guess.


Tonny