specialB Posted April 9, 2011 Share Posted April 9, 2011 Used to run an electronic exhaust cut out on my old ram...But now I found a boost activated exhaust cutout!! [ame=http://www.youtube.com/watch?v=m5gaAuGNk5M]YouTube - SP Boost Actuated Exhaust Cutout[/ame] Would never need to buy an exhaust system again. Run it quiet stock and you have all the noise and extra power when you put your foot down. Its like the exhaust bypass that comes on the new vettes except this opens at a set psi instead of a set RPM. Link to comment Share on other sites More sharing options...
saltysack22 Posted April 9, 2011 Share Posted April 9, 2011 thats pretty slick... Link to comment Share on other sites More sharing options...
EPLegacyGT Posted April 9, 2011 Share Posted April 9, 2011 Wow. Link to comment Share on other sites More sharing options...
usmc210 Posted April 9, 2011 Share Posted April 9, 2011 that would be fun Link to comment Share on other sites More sharing options...
MatsuDano Posted April 9, 2011 Share Posted April 9, 2011 Loud noises! Link to comment Share on other sites More sharing options...
specialB Posted April 9, 2011 Author Share Posted April 9, 2011 They claim on here that it gave their test car +30 sumodd horseys. I don't doubt it, no matter how big your turbo back exhaust is your still going to get restriction and backpressure. Link to comment Share on other sites More sharing options...
specialB Posted April 11, 2011 Author Share Posted April 11, 2011 [ame=http://www.youtube.com/watch?v=XhlwAzmtXlg]YouTube - Sp Performance Exhaust Cut Out on Sti[/ame] Link to comment Share on other sites More sharing options...
Drift Motion Posted April 11, 2011 Share Posted April 11, 2011 ^ I see Federal 595 tires on the STi...lol Link to comment Share on other sites More sharing options...
StoplightAssassin Posted April 11, 2011 Share Posted April 11, 2011 I'd rather have a cutout that you can open with a switch. A Vette I was driving awhile back had factory e-cutouts that were opened depending on load and rpm. It was super annoying. You'd accelerate hard, then brake for a corner and they'd close, and then you have to hit it hard again and they open, slowly I might add. Link to comment Share on other sites More sharing options...
specialB Posted April 11, 2011 Author Share Posted April 11, 2011 From the first video it looks like it opens much faster via boost acuator than the electric motor did on my truck. Supposively if you get a solenoid hooked up to it you can fully control it too, set the psi for when to open or just run full open or full close. Link to comment Share on other sites More sharing options...
FPerron Posted April 12, 2011 Share Posted April 12, 2011 I just run a 3 inch straight pipe all the time - street and track. Link to comment Share on other sites More sharing options...
dr_sharp Posted April 12, 2011 Share Posted April 12, 2011 Would suck during shifts. lol Link to comment Share on other sites More sharing options...
TRSCobra Posted April 15, 2011 Share Posted April 15, 2011 I'm thinking about getting this if I can sell my HKS catback and get my hands on a stock one... Link to comment Share on other sites More sharing options...
joeblow Posted April 15, 2011 Share Posted April 15, 2011 I didn't do much reading, but couldn't that cause issues when it closes on shifts? A sudden change in the amount of backpressure seems like it could be a bad thing, ie going from 6" worth of exhaust outlet (assuming a 3" exhaust and 3" cutout) to only 3" worth. It's cool; I'm with the band Link to comment Share on other sites More sharing options...
TRSCobra Posted April 15, 2011 Share Posted April 15, 2011 I doubt the amount of backpressure would hurt in low boost, low rpm circumstances, like when shifting. Even a really restrictive exhaust is only restrictive at higher rpm, when the engine is pushing a greater volume of air. Besides, I have a laggy ass 20g! Edit: Look how fast this thing opens! [ame=http://www.youtube.com/watch?v=C556EHYUijA]YouTube - SP boost activated exhaust cutout[/ame] Link to comment Share on other sites More sharing options...
TRSCobra Posted April 15, 2011 Share Posted April 15, 2011 Compared to electronic cutouts: [ame=http://www.youtube.com/watch?v=7CWRJO7VJrg&NR=1]YouTube - Dual QTP exaust electric cutouts 3.5po.[/ame] Link to comment Share on other sites More sharing options...
Spec B 127 Posted April 15, 2011 Share Posted April 15, 2011 Interesting idea. I though would prefer to have an unrestrictive exhaust all of the time. Link to comment Share on other sites More sharing options...
TRSCobra Posted April 15, 2011 Share Posted April 15, 2011 ^ So do I. It's my neighbors who don't! Link to comment Share on other sites More sharing options...
boostedgrocerygetter Posted April 22, 2011 Share Posted April 22, 2011 pretty sweet Link to comment Share on other sites More sharing options...
JohnnyGT08 Posted April 22, 2011 Share Posted April 22, 2011 I'd be worried about what happens when you drive through a pile of snow/ice... NEVER ARGUE WITH A STUPID PERSON. THEY WILL DRAG YOU DOWN TO THEIR LEVEL, THEN BEAT YOU WITH EXPERIENCE. [sIGPIC][/sIGPIC] Link to comment Share on other sites More sharing options...
brooklyngenius Posted April 22, 2011 Share Posted April 22, 2011 hmmm I see far too much that could go wrong. I think itd have to be tuned for and could cause problems useless signature line where i cant mention my sponsors "First Bagged BL5!" Link to comment Share on other sites More sharing options...
AmSnow440 Posted April 22, 2011 Share Posted April 22, 2011 Hey guys it's my first post! glad to be here! this is a pretty cool setup. Although I think I agree with StoplightAssassin, I'd prefer something that's either open or closed. A system that does not depend on rpm/boost to tell it when to be open or closed would be cool. I'd rather have a cutout that you can open with a switch. A Vette I was driving awhile back had factory e-cutouts that were opened depending on load and rpm. It was super annoying. You'd accelerate hard, then brake for a corner and they'd close, and then you have to hit it hard again and they open, slowly I might add. Fortunately for the Vette's, the vacuum valves can be deactivated (remain open) by removing a fuse. Once the fuse is removed, you have both valves completely open giving you a great sound out of a stock exhaust. (My Dad has an '08 Vette) Even better is if you get the "Mild to Wild" switch that enables you to activate/deactivate the valves if you want the car to be "stock" again . [ame= ] [/ame] Link to comment Share on other sites More sharing options...
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