What cat back system for 383 stroker?
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Racer
Joined: Jun 2004
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From: Lisle IL
CI 6-7-8-9-10 Veteran
What cat back system for 383 stroker?
I have an 88' with a TPI 383 stroker , SN95 paxton (5lbs),TPIS 1 5/8 longtubes w/ Y pipe, Random Tech high flow cat. Currenty stock rear Y pipe with flowmaster. Want to change the catback and looking for opinions. Let's here yours. Thanks.
Le Mans Master
Joined: Dec 2002
Posts: 5,270
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From: Seattle Area WA
Do your 1 5/8" have a 2.5" collector? Then I'd stick with a 2.5" system, though catbacks can be larger.
I have the Magnaflow catback. 2.5" awesome looks and sound. No joke, people are constantly telling me, "Wow, that actually sounds like a race car! Awesome!"
This is a 383 SuperRam with LPE 1 5/8" long tubes w/2.5" collector out the Magnaflow catback.
I have the Magnaflow catback. 2.5" awesome looks and sound. No joke, people are constantly telling me, "Wow, that actually sounds like a race car! Awesome!"
This is a 383 SuperRam with LPE 1 5/8" long tubes w/2.5" collector out the Magnaflow catback.
Team Owner
Joined: Mar 2001
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From: Boston, Dallas, Detroit, SoCal, back to Boston MA
Mine's an LT1 but I went with a 3in cat back for my blown stroker.
With that supercharger, you'll have no problem getting air IN, getting it OUT's another matter.
With that supercharger, you'll have no problem getting air IN, getting it OUT's another matter.
Thread Starter
Racer
Joined: Jun 2004
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From: Lisle IL
CI 6-7-8-9-10 Veteran
Melting Slicks
Joined: May 2001
Posts: 3,014
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From: Raleigh, NC
I have a Magnaflow on my car, and I like the sound outside the car, and it sounds good at WOT. However, the drone in the car at cruise sucks. I'm probably going to swap out the mufflers for something else because of it. If you want to give the Magnaflows a shot, I'll sell you my mufflers.
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Le Mans Master
Joined: Jul 2000
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From: Greenville SC
I have a Magnaflow on my car, and I like the sound outside the car, and it sounds good at WOT. However, the drone in the car at cruise sucks. I'm probably going to swap out the mufflers for something else because of it. If you want to give the Magnaflows a shot, I'll sell you my mufflers.
Ditto, so I switched to Corsa.
Thread Starter
Racer
Joined: Jun 2004
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From: Lisle IL
CI 6-7-8-9-10 Veteran
I have a Magnaflow on my car, and I like the sound outside the car, and it sounds good at WOT. However, the drone in the car at cruise sucks. I'm probably going to swap out the mufflers for something else because of it. If you want to give the Magnaflows a shot, I'll sell you my mufflers.
Team Owner
Joined: Dec 2000
Posts: 90,675
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From: SE NY
Cruise-In II Veteran
With a 383 I expect you are making at least 425hp at the crank and that requires over 900cfm of exhaust flow, which cannot be had from a single cat nor a single 3" pipe. The best bet is to go with at least 2 1/2" true duals with dual hi-flow cats as you need >450cfm slow down each side.
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Racer
Joined: Jun 2004
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From: Lisle IL
CI 6-7-8-9-10 Veteran
With a 383 I expect you are making at least 425hp at the crank and that requires over 900cfm of exhaust flow, which cannot be had from a single cat nor a single 3" pipe. The best bet is to go with at least 2 1/2" true duals with dual hi-flow cats as you need >450cfm slow down each side.
Team Owner
Joined: Dec 2000
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From: SE NY
Cruise-In II Veteran
I don't know about a bolt-on system; I'd take it to my local performance muffler shop.
I've seen a Magnaflow cat-back that split into dual pipes just after the cat hookup point. I'd think a performance shop could weld up that and get the cats connected along with a nice "X" pipe in the proper location.
Around here I use Mufflex, near Trenton, NJ; Denny's guys do top notch work.
I've seen a Magnaflow cat-back that split into dual pipes just after the cat hookup point. I'd think a performance shop could weld up that and get the cats connected along with a nice "X" pipe in the proper location.
Around here I use Mufflex, near Trenton, NJ; Denny's guys do top notch work.
Melting Slicks
Joined: May 2001
Posts: 3,014
Likes: 18
From: Raleigh, NC
I don't know how the drone would be with a convertible, I've never even ridden a C4 convertible.
My Magnaflows are attached to a dual exhaust system with a Dr. Gas X pipe. A local muffler shop built the system, I supplied the mufflers, X-pipe, and the headers were already on the car. The shop only charged me $140 for the fabrication and install.
My Magnaflows are attached to a dual exhaust system with a Dr. Gas X pipe. A local muffler shop built the system, I supplied the mufflers, X-pipe, and the headers were already on the car. The shop only charged me $140 for the fabrication and install.
Team Owner
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From: Boston, Dallas, Detroit, SoCal, back to Boston MA
Thread Starter
Racer
Joined: Jun 2004
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From: Lisle IL
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