Muffler Delete/Borla/Magnaflow interior noise
04-08-18 | 04:52 PM
#1
Thread Starter
Rookie
Joined: May 2017
Posts: 68
Likes: 1
From: NY
Muffler Delete/Borla/Magnaflow interior noise
I'm interested in a muffler delete for my 430, or buying some borlas to give it some rumble. However I really like having a quiet interior. How much would interior noise be effected with some loud aftermarket mufflers or a straight pipe?
04-08-18 | 04:58 PM
#2
Driver
Joined: Mar 2018
Posts: 116
Likes: 7
From: Alberta
I've been looking into this as well. I found some sound clips of straight pipes and although it sounds pretty good, it's too loud for my daily driver.
Muffler delete clips sound pretty good and I think it might be option 1, but if there are some decent muffler clips out there, I'd like to hear those as well to make a decision.
Muffler delete clips sound pretty good and I think it might be option 1, but if there are some decent muffler clips out there, I'd like to hear those as well to make a decision.
04-08-18 | 05:02 PM
#3
Advanced
Joined: Jul 2015
Posts: 538
Likes: 14
From: British Columbia
muffler noise
It will be VERY noisy. Had another car; installed an ANSA muffler. Drove me bananas. Sure it was an impressive noise when it just idled. But when driving around the rumbling got to me. On the highway the constant drone spoiled any music or conversation.
Took it off and went to OEM - what a relief.
Lexus are not made for loud interior. If you like the carnoise go to a dragrace
Took it off and went to OEM - what a relief.
Lexus are not made for loud interior. If you like the carnoise go to a dragrace
04-08-18 | 05:50 PM
#4
You are fine to do a muffler delete it will not be loud at all it will have a nice burble but that's it. The exhaust goes through restrictive exhaust manifolds passing through two small cats then through a very restrictive third cat then through a long resonator then to the mufflers all through 1.8 inch piping cutting the mufflers off will make it sound like the nissan 350z or a g35 slight tone and thats it.
Last edited by 05ls430518; 04-08-18 at 08:23 PM.
04-10-18 | 09:47 AM
#5
Racer
Joined: Jan 2017
Posts: 1,916
Likes: 763
From: TX
I guess I'm just getting older. I was hard-up to do the exhaust on my car, but the more I drive it the more I appreciate how quiet it is. I love getting on it and getting up to speed in an effortless manner that draws absolutely no attention to myself. I guess at 38, the old man persona of this car is really rubbing off on me.
The following users liked this post:
DBinMD (02-17-23)
04-10-18 | 05:56 PM
#6
Former Sponsor
Joined: Jul 2017
Posts: 117
Likes: 14
From: California
Muffler deletes usually result in some unwanted drone at certain throttle conditions like high gear on the freeway and going up hills. If you wanted a little more sound without losing the cabin comfort, we would recommend looking into an axle back or quality muffler upgrade! 
Trending Topics
04-10-18 | 06:38 PM
#8
I guess I'm just getting older. I was hard-up to do the exhaust on my car, but the more I drive it the more I appreciate how quiet it is. I love getting on it and getting up to speed in an effortless manner that draws absolutely no attention to myself. I guess at 38, the old man persona of this car is really rubbing off on me.
If you can hold off when I go to look at a rx300 in nyc I can meet up with you and show you my exhaust I will be having made soon as the salts off the roads.
Last edited by 05ls430518; 04-10-18 at 06:43 PM.
04-11-18 | 09:14 AM
#9
Former Sponsor
Joined: Jul 2017
Posts: 117
Likes: 14
From: California
https://www.magnaflow.com/automotive...oval/products/
The filter feature on the left side of the page makes finding the correct muffler much easier. If you have any questions about the different styles just let us know!
04-15-18 | 03:39 PM
#10
Driver School Candidate
Joined: Sep 2016
Posts: 40
Likes: 5
From: Arizona
You should consider doing Electric Cutouts, mine are right behind the stock mufflers and I have the resonators and 3rd Cat deleted, sounds stock when they're closed and sound like this when open:
04-17-18 | 09:49 AM
#11
Thread Starter
Rookie
Joined: May 2017
Posts: 68
Likes: 1
From: NY
Holy ****. That sounds incredible. I really want cutouts, but paying ~500 for the parts alone from QTP kinda stings at the moment. But this gives me a great idea for what I want, thanks!! Does removing the resonator and 3rd cat affect MPG at all? I'm in NYC, I'm lucky to get 15 mpg when I drive like a grandma
04-17-18 | 03:07 PM
#12
Driver School Candidate
Joined: Sep 2016
Posts: 40
Likes: 5
From: Arizona
Holy ****. That sounds incredible. I really want cutouts, but paying ~500 for the parts alone from QTP kinda stings at the moment. But this gives me a great idea for what I want, thanks!! Does removing the resonator and 3rd cat affect MPG at all? I'm in NYC, I'm lucky to get 15 mpg when I drive like a grandma
05-04-18 | 04:03 PM
#14
Driver School Candidate
Joined: Sep 2016
Posts: 40
Likes: 5
From: Arizona