Need to tame my exhaust!!!!
Need to tame my exhaust!!!! I have a 2002 Firehawk: 404 LS2 with twin billet gt35's. I am running a Burkhart Chasis torque arm. I'm running 4" aluminum exhaust with a Vibrant aluminum muffler. The Vibrant muffler has a 10" case. I am really space limited due to the torque arm.
The rear section of my exhaust with the muffler is all v-band, so it isn't really hard to pull off. I'm thinking about building a quieter street exhaust with stainless. The Vibrant muffler had a really bad drone at around 2600. In thinking about using a 4" Borla XR1 multicore. It has a case length of 16". Which is really as long as I can fit.
My question is: Will the Borla xr1 multicore be more quiet than the Vibrant muffler? I like the sound like it is, I just can't stand the drone. The exhaust is turned down under the car, but I really don't have anywhere to go with it
Thanks for any help!!!
The rear section of my exhaust with the muffler is all v-band, so it isn't really hard to pull off. I'm thinking about building a quieter street exhaust with stainless. The Vibrant muffler had a really bad drone at around 2600. In thinking about using a 4" Borla XR1 multicore. It has a case length of 16". Which is really as long as I can fit.
My question is: Will the Borla xr1 multicore be more quiet than the Vibrant muffler? I like the sound like it is, I just can't stand the drone. The exhaust is turned down under the car, but I really don't have anywhere to go with it
Thanks for any help!!!
I wouldn't bother, a 5" diameter case is the largest I'd recommend in the I-pipe area, otherwise you will have clearance issues likely with the drive shaft. Now if you're willing to modify the floor to fit a oval muffler under the car then you'll get a decent reduction in the exhaust loudness. I'd suggests just running the exhaust out back an installing a Magnaflow #14153 in the stock location
here is a couple of pics under the car. It would be nice to run the exhaust out the back, but I really have too much stuff in the way Im just thinking that if the xr1 multicore would be moderatly quieter than the aluminum Vibtant bullet muffler then it would atleast make the drone bearable
Okay, those photos help a lot.
I bet you have room for a 5x8 oval muffler in that location, if you can get a 14" Long muffler case to work in that location then try a magnaflow#14153(5"x8"x14") or possibly a #12770(7"dia. x 14"). You might want to also possibly consider some oval tubing in the mix.
I bet you have room for a 5x8 oval muffler in that location, if you can get a 14" Long muffler case to work in that location then try a magnaflow#14153(5"x8"x14") or possibly a #12770(7"dia. x 14"). You might want to also possibly consider some oval tubing in the mix.
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Brett Foote I have a aluminum fuel tank and Weldon pump on the rear where the exhaust would go, so I can't run it over the axle. Don't know if getting it another 2 feet past the crossmber would help
Part of the reason the drone is bad is the exhaust length and that you have it dumped almost right under the center of the car. If you can get it to exit back further and at less of a downward angle that should help a noticeable amount just by itself.
So are you going to make a new rear section to allow for a 6" longer borla multi-core muffler case? IMO, it looks like you should have enough room for a 4" pipe in the factory I-pipe location.
There's also the Dynatech Vortex cones, that are suppose to quiet it down a little if mounted at or close to the header collectors.
So are you going to make a new rear section to allow for a 6" longer borla multi-core muffler case? IMO, it looks like you should have enough room for a 4" pipe in the factory I-pipe location.
There's also the Dynatech Vortex cones, that are suppose to quiet it down a little if mounted at or close to the header collectors.
Last edited by 99Bluz28; Apr 27, 2013 at 02:17 PM.
think im gonna try a 3.5'' xr1 multicore in the location that the vibrant is in now. If im not satisfied with that then I will have 3.5'' exhaust to get to the back instead of 4''.
We can make that fit over the crossmember one way or the other....lol
At that point there is the space between the front and back seat to fit another smaller muffler if I have to.
thanks for the replies!!
We can make that fit over the crossmember one way or the other....lol
At that point there is the space between the front and back seat to fit another smaller muffler if I have to.
thanks for the replies!!
