Exhaust not as loud as it is supposed to be

Asked by Oct 10, 2017 at 08:50 PM about the Chevrolet Silverado 1500

Question type: Maintenance & Repair

I have an 88 silverado with a thi 350 in it.
It has flowmaster super 10s with no cats and 2 1/4
inch pipe but it is really quiet for the setup. I had a
92 with the same set up and it blew eardrums
going down the road. What is the issue?

6 Answers

132,715

Maybe the 92 had them on backwards.

No that definitely wasn't the issue, already checked on the 88 as well.

132,715

The 88 is a lower compression than the 92 so less bang out the exhaust, plus the 88 is not designed to run this stuff they call fuel, and it effect it more than the 92, but it effects the 92 also but not in the same way, if you can see if you can find some ethanol free, gas tractor fuel or high test ethanol free boat motor fuel, and put that in the tank and see if it makes a difference in the sound. You may also notice that the 92 shuts the injection off under full deceleration, and the 88 does not do it completely.

So how do I go about changing the compression? Heads? Pistons?

132,715

Yep, nice set of heads, possibly forged pistons, a nice high lift cam, but you can't change the duration and have computer controls, maybe a cam gear drive setup if you don't mind the whine they make, a good computer programmer like superchips or similar, just remember all this costs big time. Or you could just put on a set of short cherry bombs and be done with it.

I would put some glasspacks on it but I do t think you quite understand when I say this truck is quiet. It's deep but it's almost as of it has flowmaster 50 series with cats. I've had slot of old trucks with slot of loud exhaust setups. Never ran into anything like this

Your Answer:

Silverado 1500

Looking for a Used Silverado 1500 in your area?

CarGurus has 9,358 nationwide Silverado 1500 listings starting at $4,900.

Postal Code:

Chevrolet Silverado 1500 Experts

  • #1
    John Carson
    Reputation
    3,650
  • #2
    Rowefast
    Reputation
    2,930
  • #3
    Andrew Olsen
    Reputation
    2,710
View All

Related Models For Sale

Used GMC Sierra 1500
90 Great Deals out of 9,134 listings starting at $3,999
Used Ford F-150
161 Great Deals out of 10,793 listings starting at $1,900
Used Chevrolet Silverado 2500HD
10 Great Deals out of 1,458 listings starting at $5,995
Used Ram 1500
279 Great Deals out of 26,808 listings starting at $5,857
Used Dodge Ram 1500
14 Great Deals out of 457 listings starting at $3,900
Used Toyota Tundra
49 Great Deals out of 1,570 listings starting at $4,400
Used Toyota Tacoma
36 Great Deals out of 1,626 listings starting at $5,450
Used Chevrolet Tahoe
12 Great Deals out of 1,124 listings starting at $4,999
Used Chevrolet Colorado
18 Great Deals out of 2,625 listings starting at $3,995
Used Ford F-250 Super Duty
15 Great Deals out of 926 listings starting at $5,499
Used Chevrolet Camaro
32 Great Deals out of 1,144 listings starting at $8,977
Used GMC Sierra 2500HD
19 Great Deals out of 1,519 listings starting at $9,990
Used Dodge Charger
60 Great Deals out of 919 listings starting at $3,995
Used Ford Mustang
51 Great Deals out of 1,602 listings starting at $1,980
Used Nissan Titan
33 Great Deals out of 986 listings starting at $2,587

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.