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73-87 Chevy _ GMC Trucks => Performance => Topic started by: screamin86 on February 19, 2010, 05:30:55 pm

Title: single exhaust vs. dual 2 1/2
Post by: screamin86 on February 19, 2010, 05:30:55 pm

Well been debating on what i want to do with the exhaust on my truck for awhile and i had to move my 82 ta today and i love the way it sounds and was wondering what you guys thing about a large single exhaust with a dump? Right now the truck has long tubes 2 1/2 y that i built into a single 3in high flow ebay cat and about 3ft of 3in pipe and a turn down. Well on my 82 ta i have long tubes 2 1/2 y i built merged into a single 3.5in i pipe with a cutout then 2.75 into a stock 02 ta muffler lol. Well i love its sound with the cutou open and the larger the pipe the deeper the sound ect. Anyway thinking of doing something similar on the truck but build a 3in y into a single 3.5 with a bullet muffler and a turndown i know its a over kill especialy on a 4x4 with a mild cammed 350 but it does have a 2800 stall and ive got a forged 383 in the works as we speak.what are you guys opinions on going with the duals and some bullets dumped with a h or x pipe of course vs the large single? Thanks.

Title: Re: single exhaust vs. dual 2 1/2
Post by: VileZambonie on February 19, 2010, 06:09:14 pm

I ran a Y pipe 3" on my 88 Blazer and it sounded mean but I do like the look and sound of duals better.

Title: Re: single exhaust vs. dual 2 1/2
Post by: screamin86 on February 19, 2010, 06:40:10 pm

Well ill be dumping it under the bed either way so looks arent a concern.

Title: Re: single exhaust vs. dual 2 1/2
Post by: 327power on March 14, 2010, 06:29:05 am

I've thought of building my own single exhaust too. I had a mean single on my old 76' Buick and it sounded rightious! It was Y-pipe, 1.5 ft section of pipe, glasspack, then turn down. NO cats. Cats ruin your exhaust note IMO.

Title: Re: single exhaust vs. dual 2 1/2
Post by: screamin86 on March 14, 2010, 10:20:30 am

Yeah I agree. I put my old exhaust back on yesterday and its a single I built with a highflow cat and a turndown and its quiet as can be :/

Title: Re: single exhaust vs. dual 2 1/2
Post by: VileZambonie on March 14, 2010, 11:50:43 am

I ran an S-10 cat hollowed out (3" in and out) and a 3" Flowmaster and before I had the hollow cat on there it droned quite a bit. The hollow cat gave it the perfect note. OBDI around here they only inspect for the presence of the cat and run a tail pipe test.

Title: Re: single exhaust vs. dual 2 1/2
Post by: screamin86 on March 14, 2010, 12:00:30 pm

Around here its just a visual inspection but after the new year my truck will be an antique and will not require an inspection if I run the plates.

Title: Re: single exhaust vs. dual 2 1/2
Post by: 327power on March 15, 2010, 11:31:42 am

Yeah, my home in New Hampshire,and Texas where I'm currently stationed, you really don't have to worry about all that stupid stuff. Especially if your ride is like an '83 or older.