MY car sounds like Honda help !

levani041491 · 11-28-2013, 06:03 PM

so Guys I have a shop and I do my own work and buy, fix and sell Nissan/Infinitis from Copart and IAAI actions , I just did motor swap from my parts car g37 Sedan with 18k miles to Stillen Superchargered G37 with blown motor LOL . He had PPE headers , Y pipe and greddy catback and when I finished the motor swap and test drove it around, that car had no RASP at all and sounded like 2014 GTR I have in the shop .

I have
3 sets of extra OEM cats
2 sets of OEM y pipes
2 sets of Sedan Mid-pipes

i want to get rid of Rasp and need a advice where to start or I am just gonna put everything stock and changed part by part to just diagnose the source of RASP

MY 02 sensors went bad from vibration from using impact gun / Air chisle my worker used to remove stock exhaust without telling me, So 02 sensors unpluged car made 299.7 whp and 270wtq on dynp jet dyno

Stock intakes , stock tune , stock clutch just test pipes and exhaust

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11-28-2013, 06:03 PM	#17 (permalink)
levani041491 Base Member Join Date: Sep 2013 Location: Long Island NY Posts: 34 Drives: 2012 G37s Coupe Rep Power: 13	so Guys I have a shop and I do my own work and buy, fix and sell Nissan/Infinitis from Copart and IAAI actions , I just did motor swap from my parts car g37 Sedan with 18k miles to Stillen Superchargered G37 with blown motor LOL . He had PPE headers , Y pipe and greddy catback and when I finished the motor swap and test drove it around, that car had no RASP at all and sounded like 2014 GTR I have in the shop . I have 3 sets of extra OEM cats 2 sets of OEM y pipes 2 sets of Sedan Mid-pipes i want to get rid of Rasp and need a advice where to start or I am just gonna put everything stock and changed part by part to just diagnose the source of RASP MY 02 sensors went bad from vibration from using impact gun / Air chisle my worker used to remove stock exhaust without telling me, So 02 sensors unpluged car made 299.7 whp and 270wtq on dynp jet dyno Stock intakes , stock tune , stock clutch just test pipes and exhaust