Discussion in 'Engine & Performance' started by Elizabeth Turbiak, Jul 11, 2019.
any good exhaust suggestions for a 350? It’s a dual exhaust .
Its matter of opinion on sound volume and acceptable drone levels. Welcome btw
Ok I’ll look into it more thanks
I just recently did mine in my 74, stock 4 bolt 350 small block and stock manifolds, dual 2 1/4 pipe with an H crossover and 2 single chamber super v mufflers kicked out behind the wheels. It was the best option for my stock engine, if yours is modified then you may want to look into 2 1/2 or bigger.
Also, the show engine masters on motortrend did a comparison of the straight pipe vs x pipe vs H pipe and there wasn't a lot of difference in that application (dyno), H pipe being the most simple and cheapest was a no brainer for me.
best of luck
Thank you so much i appreciate It
Me I like single exhaust, the factory guys knew their stuff and I have not noticed any drop in power compared to my dual exhaust vehicles that I used to run. The '81 is 2.5 all the way to the muffler, then it chokes down to 2.25 out and over the axle.
One thing I noticed recently is glasspacks really allow the power to be generated and produce a good sound. And you can add short ones as resonators to complement the longer ones if you want to.
I vote for 4 foot of straight pipe with turndowns. 2.5" pipe. Yes, this is my daily.
Exhaust is like pizza preference. Everyone has an opinion and only a small few are terrible lol.
The previous owner of my Suburban had it set up like this:
Factory manifolds and cheap turbo mufflers being fed by 2.25" dual straight pipe. No crossover or x pipe and they exit just behind the rear wheels. Its loud, raspy and obnoxious. Its also pretty much stock so thats not exciting at all lol.
I going to start by replacing mufflers with a longer body 2 chamber to see if it mellows out. If not I'm going to add high flow cats further upstream
Lol, was that a jab? You are right as to preference. I like it loud.
I did hedman black maxx truck headers with 2.5” ball and socket flange, 2.5” pipe into 2.5” h-pipe, with borla pro xs mufflers.
The h-pipe has a clamp fitting at the very top so I can remove the exhaust if need be. In the pictures, the crossover pipe looks closer to the cab than it actually is. It’s about 8” from the fuel filter you see on the crossmember.
My spare tire doesn’t fit the spare well anyway, so I utilized the area for exhaust routing. Plenty of clearance this way from moving parts, and brake/fuel lines.
A buddy said the borla may be louder than I wanted after I’d purchased them. However, they are pretty mild with normal throttle inputs. I think the h pipe quiets it down quite a bit.
That looks great! I love Hedman, mine are just the plain ones for a 4x4, only headers I will buy. Ball and Socket are the only way to go.
Im running 3" generic long tubes, true duals with no cats straight to flowmaster super 44s in 3" and then a 90 bend turned down at a 45 angle just before the rear.
If you use 2 1/4" pipe there are several manufacturers that sell direct bolt on systems. Just look through what they sell on Summit and Jegs, and then add on the cost of an H pipe and mufflers. If you move up to 2 1/2" or 3", its usually going to be a custom installation, or way more expensive for an off the shelf setup (I think there is only one company that sells a complete bolt-on 2 1/2" exhaust system for the square body).
If you are on a budget I would just use a standard aftermarket 2 1/4" system and then put my money into good quality low restriction mufflers.
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