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SVT Shelby GT500
Boss 302 Quad Pipes on a GT500
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<blockquote data-quote="tasdevl" data-source="post: 12387489" data-attributes="member: 141001"><p>Got the side pipes bolted up - had to take the spacer out on the passenger side due to a length issue and a welded-on clamp on the sidepipe (this is a build issue with the sidepipe, not Tob's H-pipe). A couple more pictures of the system buttoned up. It's surprisingly hard to take good photos when your fingers, arms and back are practically frozen from being on a concrete floor for a few hours.</p><p></p><p><img src="https://dl.dropbox.com/u/1441008/install/IMG_1848.JPG" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p><img src="https://dl.dropbox.com/u/1441008/install/IMG_1849.JPG" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>I ran it to start with without the exhaust disc, took a test run and had the passenger's side pipe tapping the floor on the underside, so I fixed that the next morning by rotating the pipe, and thought I'd put in the restrictor disc to start, but I drilled it out to 7/8". I found in my 3 minute test drive that with no disc in place the sidepipes were overwhelming the rear pipes, and making it tough to hear the supercharger whine.</p><p></p><p><img src="https://dl.dropbox.com/u/1441008/install/IMG_0313.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p><img src="https://dl.dropbox.com/u/1441008/install/IMG_0319.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /> </p><p></p><p>Took me about 4 hours from start to finish - but there was a lot of time spent being extraordinarily slow and careful about jacking the car up, then measuring what felt like 20 times before taking the sawzall to the pipes. I'm no mechanic by any stretch of the imagination, so this is a weekend warrior-friendly mod. What's particularly interesting about the finished product is you can't see it unless you're down on the ground.</p><p></p><p><img src="https://dl.dropbox.com/u/1441008/install/IMG_0332.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>For anyone wondering how this sounds compared to stock - I've put together a video comparing stock, sidepipes with no restrictor, then sidepipes with a 7/8" restrictor. </p><p></p><p><a href="http://www.youtube.com/watch?v=XuRnMUTYYBU" target="_blank">Boss 302 Sidepipes on GT500 - YouTube</a></p><p></p><p>I have some more video also, but need to edit it a bit to allow for comparison. It's definitely a big difference from stock, and the best way I could describe it is the sound of the GT500 from the rear, with the sound of the Boss 302 from the side, the combination results in a very different and aggressive note that seems to wrap around the car. It <strong>feels</strong> like more also - there's more exhaust vibration through the floor, but in a good way, not an annoying way. </p><p></p><p>I do need to experiment with the restrictor disc opening size though - around 2000rpm is giving me a bit of a booming/droning noise, and at times it can sound a bit like an old truck on decelleration - from what I've heard on Bosses on youtube running different diameters, the size makes a big difference. I could see the QTP cutouts being an interesting option - run stock GT500 exhaust for regular driving, then open the sidepipes all the way. I should note my GT500 is a daily driver (3 hrs a day back and forth to work), with my 5 yr old son in the car 1/3 of that time, so I'm perhaps more sensitive to quality of sound rather than sheer volume.</p><p></p><p>Many thanks to Tob for making this happen, I am a huge fan of this type of experimentation :thumbsup::thumbsup:</p></blockquote><p></p>
[QUOTE="tasdevl, post: 12387489, member: 141001"] Got the side pipes bolted up - had to take the spacer out on the passenger side due to a length issue and a welded-on clamp on the sidepipe (this is a build issue with the sidepipe, not Tob's H-pipe). A couple more pictures of the system buttoned up. It's surprisingly hard to take good photos when your fingers, arms and back are practically frozen from being on a concrete floor for a few hours. [IMG]https://dl.dropbox.com/u/1441008/install/IMG_1848.JPG[/IMG] [IMG]https://dl.dropbox.com/u/1441008/install/IMG_1849.JPG[/IMG] I ran it to start with without the exhaust disc, took a test run and had the passenger's side pipe tapping the floor on the underside, so I fixed that the next morning by rotating the pipe, and thought I'd put in the restrictor disc to start, but I drilled it out to 7/8". I found in my 3 minute test drive that with no disc in place the sidepipes were overwhelming the rear pipes, and making it tough to hear the supercharger whine. [IMG]https://dl.dropbox.com/u/1441008/install/IMG_0313.jpg[/IMG] [IMG]https://dl.dropbox.com/u/1441008/install/IMG_0319.jpg[/IMG] Took me about 4 hours from start to finish - but there was a lot of time spent being extraordinarily slow and careful about jacking the car up, then measuring what felt like 20 times before taking the sawzall to the pipes. I'm no mechanic by any stretch of the imagination, so this is a weekend warrior-friendly mod. What's particularly interesting about the finished product is you can't see it unless you're down on the ground. [IMG]https://dl.dropbox.com/u/1441008/install/IMG_0332.jpg[/IMG] For anyone wondering how this sounds compared to stock - I've put together a video comparing stock, sidepipes with no restrictor, then sidepipes with a 7/8" restrictor. [url=http://www.youtube.com/watch?v=XuRnMUTYYBU]Boss 302 Sidepipes on GT500 - YouTube[/url] I have some more video also, but need to edit it a bit to allow for comparison. It's definitely a big difference from stock, and the best way I could describe it is the sound of the GT500 from the rear, with the sound of the Boss 302 from the side, the combination results in a very different and aggressive note that seems to wrap around the car. It [B]feels[/B] like more also - there's more exhaust vibration through the floor, but in a good way, not an annoying way. I do need to experiment with the restrictor disc opening size though - around 2000rpm is giving me a bit of a booming/droning noise, and at times it can sound a bit like an old truck on decelleration - from what I've heard on Bosses on youtube running different diameters, the size makes a big difference. I could see the QTP cutouts being an interesting option - run stock GT500 exhaust for regular driving, then open the sidepipes all the way. I should note my GT500 is a daily driver (3 hrs a day back and forth to work), with my 5 yr old son in the car 1/3 of that time, so I'm perhaps more sensitive to quality of sound rather than sheer volume. Many thanks to Tob for making this happen, I am a huge fan of this type of experimentation :thumbsup::thumbsup: [/QUOTE]
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