Marty,
This is great that you asked these questions because we rarely hear about the benefits of a new 4" exhaust system.
I'm not sure if he's told you about how it will double the engine life of the motor.
Or how, it creates more airflow so as to cut harmful emissions in half (so the kids can all breathe a little easier - its... "for the children").
Also, after some carbon builds up inside & gets a good lining going, gas mileage gradually increases to a point where it will actually pay for itself, then start bringing in new found income to the family. Its kinda like a financial investment. Its also tax free! Hell, it might even pay for college.
There are alot more benefits of a new 4" exhaust system that I haven't thought of yet, but I'm sure that some of the otherrrrr TDR members may be able to shed some light on. They can be so helpful in this way...
I personally am very impressed w/ your husbands willpower & constraint, considering that so many of the less disciplined husbands end up spending lots more money on the new... 5" exhaust system.
This guy borders on incredible. I don't know how you ever found a guy like this, but he's like a beacon of hope
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for the rest of us less fortunate TDR husbands to follow, learn, & grow from.
Thank you Marty, for sharing this enlightening question, maybe some other very helpful members can expand more on this extremely important topic that affects the lives of all of our TDR members' marital relationships so strongly.
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Ok, true, I was kidding about the paying for college part, but the rest was true, really. . really... honest!