Exhaust, what do you think?

dinomite · 04-08-2001, 11:35 AM

I'm looking at some exhaust stuff, and wanted to run it by you guys before I bought anything. This is going on a car that is currently stock, but will soon have AFR 165's, custom cam, etc. Just wanting to know your thoughts on this, and if there is anything hard about it that I should know beforehand.

Mac long tubes, 1-5/8"
Mac high flow H-pipe for use with longtubes
Mac pro dumps

The real question that I have is that in my NexGen parts catalog it says 'for race applications only', is that right? I didn't think that there was anything illegal about dumps, and I need to pass safety/emmissions.

Phantom5oh · 04-08-2001, 11:43 AM

I don't know about VA but in MA the law says the exhaust must exit from the rear or side of the car. Emissions wise the car will be just as clean but safety wise the car might not pass because the exhaust doesn't exit out from under the car.

Phantom

------------------
1983 GLX Convertible 5-Speed, knife-edged crank, internally balanced, TRW 11:1, custom cam, ported Windsor Jrs, Manley Valves, CCs roller lifters, dual springs, ARP stud kit, 600cfm Edelbrock Torker 2, Mallory Ignition, Canton 7qt traps windage tray baffles, Hooker Super Comp Headers 1 5/8 primaries 3" collectors, Flowmasters, K&N, ASP puleys, Maximum Motorsports C/Cs strut tower K member brace, through floor subframes, Grant wheel, billet pedals, 93 seats, Keystone rims

[This message has been edited by Phantom5oh (edited 04-08-2001).]

smokedchevy · 04-09-2001, 03:49 AM

Out here in CA dumps aren't illegal as long as you have catalytic converters. Does you're H-pipe have cats? If not, you're not going to pass emissions. Cats shouldn't cost you that much power unless you have a really modified engine ie: blower, 7000rpms. Also no cats is unhealthy to anything that breathes. I hear long tubes are a real pain in the rear to install on a 5.0, but they are superior to shorties. If mac doesn't have a cat h-pipe for long tubes, BBK does(for their long tubes). If the long tubes have cats, I'd install them in a heartbeat.

dinomite · 04-09-2001, 09:53 AM

Sorry, that mac H-pipe comes with high flow cats, and thats what I'm gonna get with the long tubes. The only real question is about the dumps, cause in the future I'm gonna be getting a panhard rod, and I know that those interfere.....any ideas?

dinomite · 04-10-2001, 08:21 AM

Anyone else know about dumps in VA, or have any ideas?

04-08-2001, 11:35 AM	#1
dinomite The Dude Join Date: Feb 2001 Location: Arlington, VA Posts: 1,262	Exhaust, what do you think? I'm looking at some exhaust stuff, and wanted to run it by you guys before I bought anything. This is going on a car that is currently stock, but will soon have AFR 165's, custom cam, etc. Just wanting to know your thoughts on this, and if there is anything hard about it that I should know beforehand. Mac long tubes, 1-5/8" Mac high flow H-pipe for use with longtubes Mac pro dumps The real question that I have is that in my NexGen parts catalog it says 'for race applications only', is that right? I didn't think that there was anything illegal about dumps, and I need to pass safety/emmissions.

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04-08-2001, 11:43 AM	#2
Phantom5oh Registered Member Join Date: Mar 2000 Location: Boston, MA Posts: 334	I don't know about VA but in MA the law says the exhaust must exit from the rear or side of the car. Emissions wise the car will be just as clean but safety wise the car might not pass because the exhaust doesn't exit out from under the car. Phantom ------------------ 1983 GLX Convertible 5-Speed, knife-edged crank, internally balanced, TRW 11:1, custom cam, ported Windsor Jrs, Manley Valves, CCs roller lifters, dual springs, ARP stud kit, 600cfm Edelbrock Torker 2, Mallory Ignition, Canton 7qt traps windage tray baffles, Hooker Super Comp Headers 1 5/8 primaries 3" collectors, Flowmasters, K&N, ASP puleys, Maximum Motorsports C/Cs strut tower K member brace, through floor subframes, Grant wheel, billet pedals, 93 seats, Keystone rims [This message has been edited by Phantom5oh (edited 04-08-2001).]

04-09-2001, 03:49 AM	#3
smokedchevy Registered Member Join Date: Jun 2000 Location: ventura,CA Posts: 438	Out here in CA dumps aren't illegal as long as you have catalytic converters. Does you're H-pipe have cats? If not, you're not going to pass emissions. Cats shouldn't cost you that much power unless you have a really modified engine ie: blower, 7000rpms. Also no cats is unhealthy to anything that breathes. I hear long tubes are a real pain in the rear to install on a 5.0, but they are superior to shorties. If mac doesn't have a cat h-pipe for long tubes, BBK does(for their long tubes). If the long tubes have cats, I'd install them in a heartbeat.

04-09-2001, 09:53 AM	#4
dinomite The Dude Join Date: Feb 2001 Location: Arlington, VA Posts: 1,262	Sorry, that mac H-pipe comes with high flow cats, and thats what I'm gonna get with the long tubes. The only real question is about the dumps, cause in the future I'm gonna be getting a panhard rod, and I know that those interfere.....any ideas?

04-10-2001, 08:21 AM	#5
dinomite The Dude Join Date: Feb 2001 Location: Arlington, VA Posts: 1,262	Anyone else know about dumps in VA, or have any ideas?