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04-09-2022, 04:58 PM
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#1 |
 Drives: Chevrolet Camaro 2014 Join Date: Oct 2020
Location: Poland
Posts: 20
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LFX Catless Low-end RPM crap
Hey guys,
I have question how to improve low-end torque with catless setup. I got ARH catless downpipes... its sounds good, got little HP at high-end but at low rpms it noticeable diffrence to minus torque ;/ is x-pipe would help with that? Or need to back to cats and be happy again? Or weld something more to get right OEM torque from bottom? Please help |
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04-10-2022, 08:37 AM
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#2 |
 Drives: 15SS Camaro Join Date: Dec 2020
Location: US
Posts: 346
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Did you remove the factory H pipe section?
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04-10-2022, 06:10 PM
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#3 |
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Drives: Chevrolet Camaro 2014 Join Date: Oct 2020
Location: Poland
Posts: 20
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Nope, all is stock. Only remove the cats
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04-10-2022, 06:24 PM
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#4 |
 
Drives: '11 2SS/RS LS3 M6 (Sold) Join Date: Dec 2015
Location: VA
Posts: 200
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I wouldn't have though that it would have made that big of a difference (I thought the pipes would have had the opposite effect and increased torque) but you possibly lost torque due to a drop in cylinder pressures from the increased exhaust flow. Retuning the car might fix the issue.
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2011 IOM 2SS/RS LS3 M6- Injen CAI, TSP 1 7/8” headers, PTB, Hurst short throw, Corsa catback exhaust, 20" TSW Nurburgrings, BMR lower control arms, BMR tunnel brace, Hotchkis lowering springs. 3660lbs. Tuned by me (sold)
2010 RJT 1SS/RS LS3 M6- CAI, TSP 2” headers, TSP F-35 cam, PTB, Hurst short throw, Dronemaster catback, BMR lowering springs, Kirkey seats, 20”/18” Weld Belmonts, 3550lbs. |
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04-11-2022, 05:43 AM
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#5 |
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Drives: Chevrolet Camaro 2014 Join Date: Oct 2020
Location: Poland
Posts: 20
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Ok i will check this, but have another question... Is it safe to get on V6 2.5 pipes all the way? or better stick to stock and do 2.5"->2.25" ??
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04-11-2022, 06:04 AM
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#6 |
  Drives: 2015 Z/22 Join Date: Aug 2015
Location: Ontario, Canada
Posts: 931
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Safe to go 2.5" all the way. Not sure if you'd lose any power in doing so, but if you did a doubt you'd even notice - I had 2.5" for a bit and didn't notice any difference.
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Overkill/Self Tuned; Mace Camshafts; K&N Typhoon Cold Air Intake; Ported 80mm Throttle Body/Intake Manifolds/Manifold Spacer; Solo Performance High-Flow Cats, Cat-back Exhaust; Vitesse Motorsports Throttle Controller; Elite Engineering E2 Catch Can; BC Racing BR Coilovers; JPSS Delrin Radius Rod Bushing Inserts, Sway Bars; Pegasus Aluminum Rear Cradle Bushings, Camber/Caster Plates; Z/28 Toe Links, Trailing Arms, Upper Control Arm Bushings, Rear Shock Mounts
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