LT Headers With GMMG Exhaust
Thread Starter
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Joined: Jan 2015
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From: UAE
LT Headers With GMMG Exhaust Hey guys, hope you’re all doing well.
I’ve been thinking about adding LT headers 1 7/8 with a catted Y pipe to my 2002 T/A. I already have GMMG exhaust and lowering springs from BMR.
I’ve been doing some research about ground clearance so I don’t scrape and I’ve noticed that the majority of people who had issues was from the driver side cats when the car is lowered. I don’t wanna go catless because with the GMMG exhaust it’ll be raspy as hell.
I haven’t made up my mind about what brand to buy, I’ve been leaning towards ARH as their quality is second to none, but there are also some companies that offer them at a good price like TSP.
What do you guys think? Your suggestions and recommendations are greatly appreciated.
Thanks
BTW that’s the cheapest set I found from ARH on this site 👇 the rest of the sites have them between 1860 and 1960 USD
https://www.griggsracing.com/product...-01178300LSWC/
I’ve been thinking about adding LT headers 1 7/8 with a catted Y pipe to my 2002 T/A. I already have GMMG exhaust and lowering springs from BMR.
I’ve been doing some research about ground clearance so I don’t scrape and I’ve noticed that the majority of people who had issues was from the driver side cats when the car is lowered. I don’t wanna go catless because with the GMMG exhaust it’ll be raspy as hell.
I haven’t made up my mind about what brand to buy, I’ve been leaning towards ARH as their quality is second to none, but there are also some companies that offer them at a good price like TSP.
What do you guys think? Your suggestions and recommendations are greatly appreciated.
Thanks
BTW that’s the cheapest set I found from ARH on this site 👇 the rest of the sites have them between 1860 and 1960 USD
https://www.griggsracing.com/product...-01178300LSWC/
Thread Starter
TECH Apprentice
Joined: Jan 2015
Posts: 310
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From: UAE
magnaflows tend to quite things down if your car is loud.
Joined: Nov 2003
Posts: 6,216
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From: Wichita KS / Rancho San Diego
Just FYI, even with cats (ceramic brick type, not hi-flows), my GMMG was still intolerably loud with LT's. After trying additional remedies (powerstick, resonator tips) I finally ditched it and went with a Hooker Maxflow set up. Sounded great even with ORY and I've never looked back.
Thread Starter
TECH Apprentice
Joined: Jan 2015
Posts: 310
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From: UAE
Just FYI, even with cats (ceramic brick type, not hi-flows), my GMMG was still intolerably loud with LT's. After trying additional remedies (powerstick, resonator tips) I finally ditched it and went with a Hooker Maxflow set up. Sounded great even with ORY and I've never looked back.
GMMG cat-less with LT's was WAY too much for me. I watched videos of 4th gen guys that added a Magnaflow 14419 resonator in the I pipe. It takes a bit of the edge off but the rasp is still very much there. Mine sounded like a machine gun from 2000-2400rpm so I avoided that RPM range at all costs. Before I went long tubes and no cats the GMMG was 100% perfect!!! The rasp and drone while cruising is why I took the GMMG off my car. I have tinnitus pretty bad in my left ear so Ive got to be careful any more. I even tried Corsa and it was even worse inside the car. A 30 minute drive had my ears ringing for a day or so. Back to Magnaflow I happily went!
Thread Starter
TECH Apprentice
Joined: Jan 2015
Posts: 310
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From: UAE
GMMG cat-less with LT's was WAY too much for me. I watched videos of 4th gen guys that added a Magnaflow 14419 resonator in the I pipe. It takes a bit of the edge off but the rasp is still very much there. Mine sounded like a machine gun from 2000-2400rpm so I avoided that RPM range at all costs. Before I went long tubes and no cats the GMMG was 100% perfect!!! The rasp and drone while cruising is why I took the GMMG off my car. I have tinnitus pretty bad in my left ear so Ive got to be careful any more. I even tried Corsa and it was even worse inside the car. A 30 minute drive had my ears ringing for a day or so. Back to Magnaflow I happily went!
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From: UAE
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From: Schiller Park, ILL Member: #317
Drone doesn't ever really bother me, except rare cases where the car has dumps under the cabin and I have to be inside the car for a long period at a specific droning rpm. But as long as it has tail pipes, this is not an issue in my case.
However, these guys are right about the rasp! This is a terrible sound, and it's a direct product of the ORY-pipe configuration. I have never experienced this kind of sound on a traditional true dual configuration (straight or H), but I have heard some ORX-pipe dual cars produce a similar sound (perhaps it was an inferior X-merge). It's an intolerable sound, like a Kazoo on crack.
Volume is subjective (what's too loud for one person can be just right for someone else), but rasp is an objectively bad sound IMO.
However, these guys are right about the rasp! This is a terrible sound, and it's a direct product of the ORY-pipe configuration. I have never experienced this kind of sound on a traditional true dual configuration (straight or H), but I have heard some ORX-pipe dual cars produce a similar sound (perhaps it was an inferior X-merge). It's an intolerable sound, like a Kazoo on crack.
Volume is subjective (what's too loud for one person can be just right for someone else), but rasp is an objectively bad sound IMO.
Thread Starter
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From: UAE
This is a horrid video. Its the only one I ever had of my GMMG/Madhammer setup with ARH headers and ORY.
https://youtube.com/shorts/NpeBe-jXm...8xGaNgyKg_2jfw
https://youtube.com/shorts/NpeBe-jXm...8xGaNgyKg_2jfw
Joined: Nov 2003
Posts: 6,216
Likes: 236
From: Wichita KS / Rancho San Diego
Madhammer = jackhammer. That's what the rasp sounded like with LT's, ORY, and GMMG. But like someone said above, with stock manifolds and cats, the GMMG was perfect.
Thread Starter
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From: UAE
Quick question…. My car has BMR lowering springs and I’ve read that some members had problems scraping the cats on the Y pipe and that the aftermarket catted Y pipe was too low to the ground and others actually had better ground clearance than the stock Y pipe with theirs.
Does it depend on the brand or is it just a hit or miss with these ?
Does it depend on the brand or is it just a hit or miss with these ?
Quick question…. My car has BMR lowering springs and I’ve read that some members had problems scraping the cats on the Y pipe and that the aftermarket catted Y pipe was too low to the ground and others actually had better ground clearance than the stock Y pipe with theirs.
Does it depend on the brand or is it just a hit or miss with these ?
Does it depend on the brand or is it just a hit or miss with these ?
Thread Starter
TECH Apprentice
Joined: Jan 2015
Posts: 310
Likes: 55
From: UAE
thanks brother 👍 ARH is the brand I was hoping to get. They’re expensive but I’d rather do it once and do it right than try another brand which will be cheaper but is a hit or miss.
They get a ton of flack on here and FB due to the price. But, they fit and fit well the first time for me! When I first got headers I didnt buy ARH right out of the gate and I should have. 3 sets of a different brands headers wouldnt fit my car. My car was apart for over 3 months while I battled with returning crap that wouldnt fit.
Thread Starter
TECH Apprentice
Joined: Jan 2015
Posts: 310
Likes: 55
From: UAE
They get a ton of flack on here and FB due to the price. But, they fit and fit well the first time for me! When I first got headers I didnt buy ARH right out of the gate and I should have. 3 sets of a different brands headers wouldnt fit my car. My car was apart for over 3 months while I battled with returning crap that wouldnt fit.
Sorry to hear that, you must be real patient.