Remove Mufflers?
Thread Starter
Driver
Joined: Jan 2005
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From: NY
Remove Mufflers?
I have a set of Borla tips on my stock mufflers, but have been looking into using Magnaflows and having the tips re-welded onto those. This makes me wonder though - is anyone running without the rear mufflers and just tips? I've seen some threads of LS guys doing this and they seem to like the sound, as a lot of the loudness is taken care of by the resonators futher up. I'd like a much louder exhaust sound of my GS4.
Thread Starter
Driver
Joined: Jan 2005
Posts: 187
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From: NY
Originally Posted by mikal
I think it's gonna be really loud without the mufflers. Even with a resonator, you dont have anything else to muffle the sound.
Some info:
https://www.clublexus.com/forums/sho...muffler+delete
Thread Starter
Driver
Joined: Jan 2005
Posts: 187
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From: NY
Originally Posted by mikal
Why dont you just unbolt your mufflers and see how they sound. If you like it, then get the pipes extended and weld on the tips.
Lexus Fanatic
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From: Florida
I would think with no mufflers performance would suffer because of NO backpressure. you need some backpressure for low end performance. also, it would probably sound very raspy and pop and make wierd sounds, especially when you let off the gas at high rpm.
Lexus Fanatic
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From: The Rotten Apple
if anything add another resonator or a glasspack muffler like the FlowTech Red Hots Mufflers (their $17.95 each) and weld the tips to it.
www.summitracing.com and do a search for FlowTech Red Hots Mufflers or here's the part number - BIG-50251FLT
www.summitracing.com and do a search for FlowTech Red Hots Mufflers or here's the part number - BIG-50251FLT
Last edited by GSoup; Nov 16, 2005 at 08:42 AM.
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Backpressure isn't needed for low end performance..
Read up on Jbrady's posts about exhaust dynamics for more info. I'm not an exhaust gas flow expert (far from it) but Jbrady seems to have A TON of knowledge on gas flow.
Read up on Jbrady's posts about exhaust dynamics for more info. I'm not an exhaust gas flow expert (far from it) but Jbrady seems to have A TON of knowledge on gas flow.
Originally Posted by chuckb
I would think with no mufflers performance would suffer because of NO backpressure. you need some backpressure for low end performance. also, it would probably sound very raspy and pop and make wierd sounds, especially when you let off the gas at high rpm.
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Thread Starter
Driver
Joined: Jan 2005
Posts: 187
Likes: 1
From: NY
Originally Posted by Lvangundy
Backpressure isn't needed for low end performance..
Read up on Jbrady's posts about exhaust dynamics for more info. I'm not an exhaust gas flow expert (far from it) but Jbrady seems to have A TON of knowledge on gas flow.
Read up on Jbrady's posts about exhaust dynamics for more info. I'm not an exhaust gas flow expert (far from it) but Jbrady seems to have A TON of knowledge on gas flow.
Lexus Fanatic
Joined: Aug 2004
Posts: 6,947
Likes: 4
From: Florida
Originally Posted by nicola
Yea, its a myth from a lot of mis-informed people.
then why doesn't everything just have wide open 4inch exhaust? believe me, back pressure is directly related to low end power. that is why aftermarket exhausts can move your powerband around.
Lexus Champion
Joined: Aug 2004
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From: California
Chuck B, this is why.
Originally Posted by Jbrady
NOW... PLEASE... ONE MORE TIME... to other peoples posts in this thread... engines do NOT need or want backpressure. This is an incorrect assumption made by people with partial information. It has been said so many times that many people just assume it to be correct. The PROBLEM is that large pipes LOWER velocity. It is the loss of velocity that hurts low RPM power. The solution is to build the best flowing lowest restriction system from the smallest diameter pipes cabable of supporting the high RPM power output of the engine. This is why I recommend 2.25" pipes and not 2.50" pipes. So please, everyone, stop saying an engine needs exhaust backpressure.
Originally Posted by mikal
Chuck B, this is why.
if anything add another resonator or a glasspack muffler like the FlowTech Red Hots Mufflers (their $17.95 each) and weld the tips to it.
hey carlos what exactly is a glasspack muffler?
Lexus Fanatic
Joined: Aug 2004
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From: Florida
Originally Posted by mikal
Chuck B, this is why.
I still think it's just different wording for the same theory.
Lexus Fanatic
Joined: Sep 2005
Posts: 5,095
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From: The Rotten Apple
Originally Posted by sha4000
cant get anymore realer than that
if anything add another resonator or a glasspack muffler like the FlowTech Red Hots Mufflers (their $17.95 each) and weld the tips to it.
hey carlos what exactly is a glasspack muffler?
if anything add another resonator or a glasspack muffler like the FlowTech Red Hots Mufflers (their $17.95 each) and weld the tips to it.
hey carlos what exactly is a glasspack muffler?