Installed new exhaust, now have some hesitation. WTF!
04-28-08, 04:10 PM
#1
Lexus Test Driver
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Installed new exhaust, now have some hesitation. WTF! *Now with Pics*
So I installed a true dual setup with an X pipe over the weekend on my '97 SC400. Now the car under very low throttle/acceleration feels like it's sputtering at low RPM.
No CEL or anything and it's only happened twice over about a 60 mile period. NO backfires or anything like that. Otherwise it's felt like a great mod. Is it because the car is learning the new additions and it's trying to make adjustments or is there too much volume to fill/not enough backpressure? I'm not sure the size of the piping, but it looks like it's probably 2.5" from the downpipe/precats all the way back to the mufflers. Definitely not oversized IMO. Any input from anyone?
No CEL or anything and it's only happened twice over about a 60 mile period. NO backfires or anything like that. Otherwise it's felt like a great mod. Is it because the car is learning the new additions and it's trying to make adjustments or is there too much volume to fill/not enough backpressure? I'm not sure the size of the piping, but it looks like it's probably 2.5" from the downpipe/precats all the way back to the mufflers. Definitely not oversized IMO. Any input from anyone?
Last edited by kyoso23; 04-30-08 at 10:11 AM. Reason: added pics
04-28-08, 05:00 PM
#3
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No, I got really excited when I got it so I installed it without even thinking of it. It's certainly nothing overly agressive. The stock rear cat (just a resonator on my car it looks like) is deleted and there is an x pipe relatively close to where the first Y pipe used to be, and then duals to the rear in nearly the identical shape as the old OEM piping to a couple Magnaflows. It's not really very loud at all, just very deep sounding. It really sounds great, no rasp to it at all. And it seems to have added some good power all through the RPMs.
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04-28-08, 09:34 PM
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No, I got really excited when I got it so I installed it without even thinking of it. It's certainly nothing overly agressive. The stock rear cat (just a resonator on my car it looks like) is deleted and there is an x pipe relatively close to where the first Y pipe used to be, and then duals to the rear in nearly the identical shape as the old OEM piping to a couple Magnaflows. It's not really very loud at all, just very deep sounding. It really sounds great, no rasp to it at all. And it seems to have added some good power all through the RPMs.
04-30-08, 10:04 AM
#10
Lexus Test Driver
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I'm happy to report that the car is running much better, has a noticeable improvement in power, and sounds great. Apparently it just needed a few days, an ECU reset, and a few starts to sort out what it needed. I actually bought this setup from CL member JesLet who some of you may know is parting out his beautiful ultrasonic blue SC400 due to an unfortunate turn of events...
https://www.clublexus.com/forums/sho...d.php?t=347399
The mufflers and tips are all one piece, it's a stainless oval style muffler. Here's some crappy cell pics...
https://www.clublexus.com/forums/sho...d.php?t=347399
The mufflers and tips are all one piece, it's a stainless oval style muffler. Here's some crappy cell pics...
Last edited by kyoso23; 04-30-08 at 10:26 AM.
04-30-08, 10:14 AM
#12
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05-01-08, 06:53 PM
#15
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