Quote:
Originally Posted by JCurry2885
Hey guys first post here. Just had tsp 1 7/8 long tubes installed on my car. I have a 2018 1ss non npp and it sounds like crap with the long tubes, no cat or resonators routed through the non npp muffler. With that said I'm going to have an exhaust shop make a full 3" exhaust from the headers back with a xpipe. I cant decide on what mufflers to use, or maybe just straights? I'm not worried about it being to loud. Was thinking maybe slp loudmouth 2 mufflers? Let me know your opinions.
Thanks!
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Already said, many times that the m6 needs primary cats! I don’t know is bullets would work, I don't know if something like the Borla dual muffler midpipe will work. High flow cats work. Don't think any exhaust work outside of adding cats will work.
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Forged short block, large duration sub .600 lift Cam Motion cam, 7200 RPM fuel cut, Pray Ported Heads, 3.85 pulley D1X, stage II intercooler, DSX secondary low side, DSX E85 sensor, Lingenfelter big bore 2.0 pump, ported front cats, 60608 Borla, LT4 injectors, ZL1 1LE driveshaft and Katech ported TB, ported MSD intake, BTR valvetrain, ARP studs, ProFlow valves, PS4 tires.
Last edited by oldman; 12-05-2018 at 10:05 AM.
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