Exhaust Noise After Header Install - Toyota Nation Forum : Toyota Car and Truck Forums

brianrdp · 05-16-2008, 09:33 AM

Hey Guys, I got some nice advice from PINEAPPLE about this; what does everyone else think?

I have a 92 GT... excellent condition. Had it since 120,000 km and just hit 170,000 this week. I recently installed headers, 4-1 design excluding the cat. As you might already know, I now have the most horrible sound coming from my one outlet muffler. It seems to be worse when its cold and gets better as it warms up, but is still there. I definitely got gains from the header and it doesn't really feel like i lost any low end torque. I thought about installing a Magnaflow muffler to alleviate the sound and make it sound like a Celica again, and not a freakin Civic rice burner. What do you guys think? Can I solve this problem with a better muffler with more flow? (ie Magnaflow) Or am I stuck reinstalling a cat or another resonator?

Thanks!

hatchy_gt-s · 05-16-2008, 10:09 AM

i had the same prob with my 6th gen i removed the cat so i only had one and went with an upgraded muffler and it sounds better, this worked the best, and is not loud
http://www.horsepowerfreaks.com/pric...dard_40_Series

fredk · 05-16-2008, 10:36 AM

now it sounds like a honda with a fart pipe right?

brianrdp · 05-21-2008, 08:11 AM

Fart can... (lol) Not really, actually I can barely notice it now. It seems to be getting better with time for some reason. I think I'm just going to install the GTS muffler to allow more flow. My mechanic recommends that or installing another resonator because its not that major. The highway gains are definitely noticable and it sounds nice when going fast, so all and all, i say the catless header is a nice bolt on mod for some noticable high end gains without losing and low end torque.