Loudmouth 1 w/ LT Headers
Loudmouth 1 w/ LT Headers Good afternoon! Currently working on a minor project with my 2000 trans am. Waiting on set of 799 heads and installing the LS6 intake. I want to install LT headers but I already have a SLP Loudmouth 1.. Will there be a difference if I just run the catted Y pipe OR if i run a ORY pipe and install a muffler where the resonator currently is? Anybody else have this setup?
I run long tubes with a ORY and a Magnaflow 14419 bullet muffler in place of the old LM1 resonator I had. It sounds much much better. Still loud but much deeper sounding and very little rasp. The 14419 muffler was a direct replacement for the LM1
I may just try that muffler you mentioned. The only thing I'm questioning now is the difference between Speed headers vs TSP headers... I have a Summit Racing up here but I've heard bad reviews about pacesetter being bad for fitment and I haven't heard much about BBK to know if there is much performance gains compared to the first 2...
I have Pacesetter long tubes and have no complaints, but both TSP and Speed Engineering are really nice for the price as well. Whichever way you go I'd go with 1 7/8" though
Im on summits website... they only have the 1 3/4, I've read that with the stock Ls1 its recommended, even with a mild cam. I might just go with that since its easier for me to just go pick it up instead of waiting to be shipped. Anybody know if tunebyfrost is still in business? I just need the EGR and rear 02s tuned out. Waiting on my 799 heads from 93BlackTa (real great to work with).
1 3/4" will be just fine but even in your application the 1 7/8" will be worth another 5-10 hp, and will be much better suited for potential future growth. Just something to know...
Trending Topics
TECH Enthusiast
Joined: Nov 2013
Posts: 629
Likes: 1
From: upstate ny
Same setup I'm running. No complaints here!
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo knowledge=power!! I appreciate the information, always open to ideas.. I think the next step after this would be work on the transmission and the 10bolt rear. already had the carrier replaced in it, not sure how much time is left on it lol. Just looking for a DD that I can swap the rear tires out at the track and get into the mid 13s hopefully. This is kind of new to me, never worked this far on a car before. youtube and Ls1howto help alot haha
TECH Enthusiast
Joined: Nov 2013
Posts: 629
Likes: 1
From: upstate ny
knowledge=power!! I appreciate the information, always open to ideas.. I think the next step after this would be work on the transmission and the 10bolt rear. already had the carrier replaced in it, not sure how much time is left on it lol. Just looking for a DD that I can swap the rear tires out at the track and get into the mid 13s hopefully. This is kind of new to me, never worked this far on a car before. youtube and Ls1howto help alot haha
Yes! I've heard that a good converter is typically a good upgrade... How does it do with daily driving? I typically drive city 60% of the time, either to work or DD. I also heard that with it, its recommended a trans cooler to be installed. I was thinking about going with getting a trans go shift kit HD2 to help with shifting but a trans cooler I don't know much about...
TECH Enthusiast
Joined: Nov 2013
Posts: 629
Likes: 1
From: upstate ny
Yes! I've heard that a good converter is typically a good upgrade... How does it do with daily driving? I typically drive city 60% of the time, either to work or DD. I also heard that with it, its recommended a trans cooler to be installed. I was thinking about going with getting a trans go shift kit HD2 to help with shifting but a trans cooler I don't know much about...
In my opinion it's great for daily driving. Your car will have a different feel but you will get used to it fast. Wish I would've went 4000 lol. Yes you will want a trans cooler. I'm running the b&m 70264 with no problems with trans temps. Think I paid around $90? I bypassed the oem trans cooler after doing a bunch of research. Really simple hookup. Last edited by ironmikektm525; Feb 12, 2018 at 05:51 PM.
TECH Enthusiast
Joined: Nov 2013
Posts: 629
Likes: 1
From: upstate ny
True lol. Originally I had a magnaflow catback (to quiet) with a t.s. Catted y (old version merge) Picked up the lm2 then awhile later the new version t.s. Ory. I noticed the lm2 bullet muffler wasn't 3" all the way through ( core dropped down to 2.5) so I went with the magnaflow which is true 3". From what I've read the slp lm1,lm2 are top in best flowing catbacks. I'm really happy with the sound and performance. I always think about doing the flowmaster merge or just welding on a 3" outlet in place of the 2.75.
Last edited by ironmikektm525; Feb 12, 2018 at 06:59 PM.
12 Second Club
Joined: Dec 2017
Posts: 1,033
Likes: 221
From: San Antonio
Yes, he is. 804-226-1617.
He is doing my 4L80 swap as soon as the trans guy is done rebuilding it.
I was thinking about doing the same O2/EGR delete as well. He has to tune it for the 4L80, so he might as well delete a few things while he's in there.
He is doing my 4L80 swap as soon as the trans guy is done rebuilding it.
I was thinking about doing the same O2/EGR delete as well. He has to tune it for the 4L80, so he might as well delete a few things while he's in there.
True lol. Originally I had a magnaflow catback (to quiet) with a t.s. Catted y (old version merge) Picked up the lm2 then awhile later the new version t.s. Ory. I noticed the lm2 bullet muffler wasn't 3" all the way through so I went with the magnaflow which is true 3". From what I've read the slp lm1,lm2 are top in best flowing. I'm really happy with the sound and performance. I always think about doing the flowmaster merge or just welding on a 3" outlet in place of the 2.75.
TECH Enthusiast
Joined: Nov 2013
Posts: 629
Likes: 1
From: upstate ny
Ya I thought you had the fm merge. Your merge was crap compared to the new version. Not really sure if my merge would benefit from it ? It would be really easy to cut off the 2.75 and weld on a 3" outlet. Gonna half to think about it and I've thought about this more then once lol
Ya I thought you had the fm merge. Your merge was crap compared to the new version. Not really sure if my merge would benefit from it ? It would be really easy to cut off the 2.75 and weld on a 3" outlet. Gonna half to think about it and I've thought about this more then once lol