DON'T DO IT: non-catted LT's, x pipe, Roush AB

[SlaughterOfTheSoul]

This thread has me trying to figure out how to keep everything quiet when I get long tube headers and delete the cats. I am not a fan of daily driving cars that sound loud under normal acceleration lol. Stock is already bad enough!

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[BmacIL]

This thread has me trying to figure out how to keep everything quiet when I get long tube headers and delete the cats. I am not a fan of daily driving cars that sound loud under normal acceleration lol. Stock is already bad enough!

Anything you do with LTs will be very loud under normal acceleration.

 

[SlaughterOfTheSoul]

Anything you do with LTs will be very loud under normal acceleration.

You're right. I should just turbo the car.

 

[AlmostFamous]

This thread has me trying to figure out how to keep everything quiet when I get long tube headers and delete the cats. I am not a fan of daily driving cars that sound loud under normal acceleration lol. Stock is already bad enough!

Then you'll definitely need at least a couple aftermarket resonators. There's everything from the Dynomax Race Bullets which will clear out the rasp without altering the volume or aggressive of the exhaust note. All the way to installing a pair of Solo Performance Stealth Mufflers and Vibrant Ultra Quiet Resonators, which will have your car LS460 luxury quiet.

 

[MasterCylinder]

Hey soooooo what about DOUBLE H-pipes? Kinda like double xpipes.

 

[gameovergt]

Hey soooooo what about DOUBLE H-pipes? Kinda like double xpipes.

that's a cool idea, or weld in a http://www.jegs.com/i/Flowmaster/38...MIoK_m1eT_2QIVy7rACh3EBQM3EAQYASABEgL8CvD_BwE

 

[Beerdy]

I had this set up for about 2 weeks. I now have a barely used Corsa Extreme catback sitting out back. It sucks because I really like the sound of the Corsa on a car with stock manifolds and cats, but with catless long tubes it's just stupid loud and not pleasant.

video please. I was thinking of the non-catted corsa extreme plus longtubes. change my mind with a video.

 

[BmacIL]

I had this set up for about 2 weeks. I now have a barely used Corsa Extreme catback sitting out back. It sucks because I really like the sound of the Corsa on a car with stock manifolds and cats, but with catless long tubes it's just stupid loud and not pleasant.

I'd put the stock manifolds back on, but that's just me. One of the reasons no headers in my future. The sound is worth more than a little bit of HP.

 

[Ebm]

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I'd put the stock manifolds back on, but that's just me. One of the reasons no headers in my future. The sound is worth more than a little bit of HP.

Why not keep the headers and add cats? It's still bananas, but a little less bananas than catless.

 

[BmacIL]

Why not keep the headers and add cats? It's still bananas, but a little less bananas than catless.

Very little gains to go through all that work. You could buy headers with green cats to get the same effect. Most (2/3 of it) of it comes from removing the restriction of the cats. The rest is from the harmonics of the header primary lengths and collector design.

 

[WildHorse]

I've read that Ford did a really good job on the 15-17 cats. Very little restriction.

 

[BmacIL]

I've read that Ford did a really good job on the 15-17 cats. Very little restriction.

Cat deletes are worth 15-20 whp.

 

[WildHorse]

Cat deletes are worth 15-20 whp.

Really? Wow.. the # I keep seeing is like 8hp. Thanks.

 

[MasterCylinder]

that's a cool idea, or weld in a http://www.jegs.com/i/Flowmaster/38...MIoK_m1eT_2QIVy7rACh3EBQM3EAQYASABEgL8CvD_BwE

Ehhhhh. I mean I am not a fan of H-pipes.

 

[thehunterooo]

I will have a video with an H pipe in about 2 weeks

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