As long as you keep the offset with the pipe I don't see why it wouldn't work.
Custom DIY Exhaust Out Of Stock Catback
So at the moment I have a Flowmaster catback on my 99 Cobra.
I have the stock one in my patio because I was going to sell it. Today on my drive home from work (12am-8am) I had a thought. Theoretically speaking since my stock catback's mufflers are same side off-set I could cut them out and just clamp or weld in some piping to make a straight pipe catback and it would fit as long as the replacement piping was the same length as the piping I cut out?
The cats are still on it so I'd still have backpressure and it won't be insanely loud. This is mainly for those times I go to a track or a local meet.
I have the stock one in my patio because I was going to sell it. Today on my drive home from work (12am-8am) I had a thought. Theoretically speaking since my stock catback's mufflers are same side off-set I could cut them out and just clamp or weld in some piping to make a straight pipe catback and it would fit as long as the replacement piping was the same length as the piping I cut out?
The cats are still on it so I'd still have backpressure and it won't be insanely loud. This is mainly for those times I go to a track or a local meet.
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+1 to the above post.
If you are going to straight-pipe it for the track, why not just take the flowmaster cat-back off and run it without a cat-back...Much easier and less hassle welding and cutting the stock cat-back.
If you are going to straight-pipe it for the track, why not just take the flowmaster cat-back off and run it without a cat-back...Much easier and less hassle welding and cutting the stock cat-back.
I would but I don't want to leave the weight of the H-pipe resting on the Header bolts. I don't see a way to support the H-pipe.+1 to the above post.
If you are going to straight-pipe it for the track, why not just take the flowmaster cat-back off and run it without a cat-back...Much easier and less hassle welding and cutting the stock cat-back.
When I put my cat-back on I almost bought 2 more Muffler hangers to support the H-pipe...I thought I notived that I could have bolted them somwhere on the subframe where the driveshaft is. At least thats what I thought I noticed. I don't remember too well (I was more concentrated on getting the mufflers/flowtubes/dumps all bolted and lined up). I think there is a way; you may have to get creative though.I would but I don't want to leave the weight of the H-pipe resting on the Header bolts. I don't see a way to support the H-pipe.
I'll have to take a look. I might be trading my Flowmaster for a Magnaflow so I might be under there anyways. I'll post back when I look incase anyone else is interested in doing this.When I put my cat-back on I almost bought 2 more Muffler hangers to support the H-pipe...I thought I notived that I could have bolted them somwhere on the subframe where the driveshaft is. At least thats what I thought I noticed. I don't remember too well (I was more concentrated on getting the mufflers/flowtubes/dumps all bolted and lined up). I think there is a way; you may have to get creative though.
I have the stock convertible subframe connectors I might be able to weld a bracket to those depending on how far away they are. I don't want to drill and bolt into it though since it would weaken them and the stock ones are flimsy as it is.
Yeah, I wouldnt bolt anything to subframe connectors either. I just remembered that you may also be able to bolt some muffler hangers where the frame rises up after the rear floor boards (where the bottom of the rearseat sits). That may be too far back from the H-pipe but it might be a good place to look also.
Be creative and I think you will be able to find a place. Definitely report back!
Be creative and I think you will be able to find a place. Definitely report back!
Just wanted to update on the subject.
I sold the stock cat back for some xmas cash haha
so as of right now I don't have any plans for that.
I sold the stock cat back for some xmas cash haha
so as of right now I don't have any plans for that.
Who the heck bought the stock catback? Didn't know there was a market for those. I guess someone who's doing an IRS swap, but talk about finding a needle in a haystack as far as buyers go.
I gave my stock catback away to some tweeker that wanted it for some tweeker project lol.
I gave my stock catback away to some tweeker that wanted it for some tweeker project lol.
haha yeah I never expected anyone to buy it but I put it on craigslist for $40 and someone bought it. thumbsup3.gifWho the heck bought the stock catback? Didn't know there was a market for those. I guess someone who's doing an IRS swap, but talk about finding a needle in a haystack as far as buyers go.
I gave my stock catback away to some tweeker that wanted it for some tweeker project lol.
My exhaust is straight piped after the stock H-pipe, and it sounds fantastic.
It sounds like a cobra starting up. Every time I start the car after filling up at the gas station everyone's neck snaps. Then it tapers off and is pretty quiet idling. Once you start taking off, it is very easy to control whether you want it to be loud or quiet. Literally very little drone on the highway. You can tell you're driving a V8 but you can still have a conversation without yelling.
Keeps the neighbors and family happy when you can roll in super quiet at 1am. But the next day, you can bet I'm making sure they hear it.
Very good and cheap idea that a lot of people shy away from doing; and with good reason, too. Usually cars and trucks that have no mufflers sound like shiz, but the 4.6 sounds great with it.
Once it's spring I'll get a video up for some skeptics, I'd like to hear how yours turned out. If you don't mind, you should definitely hook us up with a vid.
It sounds like a cobra starting up. Every time I start the car after filling up at the gas station everyone's neck snaps. Then it tapers off and is pretty quiet idling. Once you start taking off, it is very easy to control whether you want it to be loud or quiet. Literally very little drone on the highway. You can tell you're driving a V8 but you can still have a conversation without yelling.
Keeps the neighbors and family happy when you can roll in super quiet at 1am. But the next day, you can bet I'm making sure they hear it.
Very good and cheap idea that a lot of people shy away from doing; and with good reason, too. Usually cars and trucks that have no mufflers sound like shiz, but the 4.6 sounds great with it.
Once it's spring I'll get a video up for some skeptics, I'd like to hear how yours turned out. If you don't mind, you should definitely hook us up with a vid.
My exhaust is straight piped after the stock H-pipe, and it sounds fantastic.
It sounds like a cobra starting up. Every time I start the car after filling up at the gas station everyone's neck snaps. Then it tapers off and is pretty quiet idling. Once you start taking off, it is very easy to control whether you want it to be loud or quiet. Literally very little drone on the highway. You can tell you're driving a V8 but you can still have a conversation without yelling.
Keeps the neighbors and family happy when you can roll in super quiet at 1am. But the next day, you can bet I'm making sure they hear it.
Very good and cheap idea that a lot of people shy away from doing; and with good reason, too. Usually cars and trucks that have no mufflers sound like shiz, but the 4.6 sounds great with it.
Once it's spring I'll get a video up for some skeptics, I'd like to hear how yours turned out. If you don't mind, you should definitely hook us up with a vid.
right now I have the catback off. Open stock midpipe. Ill try to shoot a vid soon. Currently I'm working 18+ hours of OT so it might be a minute but Ill keep it in mind when I have a chance. The Cobra with no mufflers (at least with an open midpipe) is never quiet haha. thumbsup3.gif
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