wolfpackman Posted March 23, 2010 Report Share Posted March 23, 2010 So I'm thinking about getting some pacesetter longtube headers for my truck, I've already got 2 SLP Loudmouths dumped under the bed. My only concern is that there won't be enough backpressure with no cats and the Loudmouths certainly don't add much backpressure. Will I lose torque from the lack of backpressure? I know it will sound mean I just want it to perform as good as it sounds. Quote Link to comment Share on other sites More sharing options...
alex.t Posted March 23, 2010 Report Share Posted March 23, 2010 you shouldnt loose to much if you havent put in like 3 inch piping. Quote Link to comment Share on other sites More sharing options...
wolfpackman Posted March 23, 2010 Author Report Share Posted March 23, 2010 you shouldnt loose to much if you havent put in like 3 inch piping. nice. none of it will be 3 inch. mostly stock and i think there's 2.5 after the muffler Quote Link to comment Share on other sites More sharing options...
alex.t Posted March 23, 2010 Report Share Posted March 23, 2010 ya you should be fine. Quote Link to comment Share on other sites More sharing options...
Quik Posted March 23, 2010 Report Share Posted March 23, 2010 you want Zero back pressure. what you want is properly velocity and scavenging. back pressure is very bad Quote Link to comment Share on other sites More sharing options...
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