As Promised, My Exhaust
05-12-2004, 08:24 PM
#13
Super Moderator
Thread Starter
Join Date: Sep 2002
Location: Savannah, Ga
Posts: 2,763
XR1's are racing mufflers, and rightly so. They make the car louder below 4k, but a lot quieter above. Quite useless on a street car.
Ill start a new thread on muffler reviews/recommendations.
Ill start a new thread on muffler reviews/recommendations.
05-12-2004, 10:59 PM
#14
Senior Member
Join Date: Dec 2003
Location: Corvallis, Oregon
Posts: 419
Very nice!
Jimmi325i on the evil forum tried using the Moreso spiralflow muffler as a presilecer between an RB collected header and some catback that I can't remember. The spiralflow was toast after a couple weeks, according to him. Yours should do better due to being a pair in parallel as opposed to a single one directly after the header, plus you have another muffler ahead of them. I'd like to know how it all holds up for you. I might attempt a custom catback one of these days and I'd like to use the spiralflow mufflers before the silencers.
Have you heard of Car Chemistry baffle inserts for welding in the header collector? Wozzom on the other forum put one in his collected header and didn't get a power loss, but it quieted down his ported engine a bit. He's dynoing in the 170 rwhp range, I think. I'm about to order mine to weld inside my header before ditching the stock exhaust manifold.
Jimmi325i on the evil forum tried using the Moreso spiralflow muffler as a presilecer between an RB collected header and some catback that I can't remember. The spiralflow was toast after a couple weeks, according to him. Yours should do better due to being a pair in parallel as opposed to a single one directly after the header, plus you have another muffler ahead of them. I'd like to know how it all holds up for you. I might attempt a custom catback one of these days and I'd like to use the spiralflow mufflers before the silencers.
Have you heard of Car Chemistry baffle inserts for welding in the header collector? Wozzom on the other forum put one in his collected header and didn't get a power loss, but it quieted down his ported engine a bit. He's dynoing in the 170 rwhp range, I think. I'm about to order mine to weld inside my header before ditching the stock exhaust manifold.
05-12-2004, 11:13 PM
#15
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Thread Starter
Join Date: Sep 2002
Location: Savannah, Ga
Posts: 2,763
Originally Posted by Fluid Dynamics' date='May 12 2004, 11:59 PM
Very nice!
Jimmi325i on the evil forum tried using the Moreso spiralflow muffler as a presilecer between an RB collected header and some catback that I can't remember. The spiralflow was toast after a couple weeks, according to him. Yours should do better due to being a pair in parallel as opposed to a single one directly after the header, plus you have another muffler ahead of them. I'd like to know how it all holds up for you. I might attempt a custom catback one of these days and I'd like to use the spiralflow mufflers before the silencers.
Have you heard of Car Chemistry baffle inserts for welding in the header collector? Wozzom on the other forum put one in his collected header and didn't get a power loss, but it quieted down his ported engine a bit. He's dynoing in the 170 rwhp range, I think. I'm about to order mine to weld inside my header before ditching the stock exhaust manifold.
Jimmi325i on the evil forum tried using the Moreso spiralflow muffler as a presilecer between an RB collected header and some catback that I can't remember. The spiralflow was toast after a couple weeks, according to him. Yours should do better due to being a pair in parallel as opposed to a single one directly after the header, plus you have another muffler ahead of them. I'd like to know how it all holds up for you. I might attempt a custom catback one of these days and I'd like to use the spiralflow mufflers before the silencers.
Have you heard of Car Chemistry baffle inserts for welding in the header collector? Wozzom on the other forum put one in his collected header and didn't get a power loss, but it quieted down his ported engine a bit. He's dynoing in the 170 rwhp range, I think. I'm about to order mine to weld inside my header before ditching the stock exhaust manifold.
I remember Jimmys results, and I was rather hesitant. But DAMN if those mufflers dont make a huge difference in the sound.
Know anyone who wants to buy my SP engine?
05-12-2004, 11:51 PM
#16
Senior Member
Join Date: May 2002
Location: California
Posts: 22,465
the key with some of those mufflers is the hangers, our race car puts stress on the muffler and it cracks, the stock ones dont do that. we're running a paul yawish header with a single 3" chambered muffler and a 3" dynomax out back, its ok for a race car its almost streetable
