From talking with a few local engine builders, they've suggested since my Trans Am is at 91k miles, that it would be a good idea to replace my coil packs. I've read the threads concerning MSD's aftermarket coil packs and realized that's not a good route. So, do I need to replace the coil packs? Would it just be added insurance? Thanks ahead.

 

why replace them if they are working correctly? waste of money IMO

 

Well, that's why I asked if it would be added insurance.

 

There is absolutely no reason to change them. Stock coils are sufficient for almost any application, and there is no reason to replace them as a part of preventative maintenance at all. You are good as you are.

 

no need to change them out. For as long as i have been here i havn't seen anyone with coil pack failure.

 

Thanks for the replies fellas.

 

Go ahead and replace them, I give you postage to send me your old one !

+1 on no need to change them..

 

Factory ignition system is VERY good, from the coils to wires, to plugs. In 5 years of exposure to these cars, including 3 years of being a Chevy service advisor - I've only seen coil pack failure once on an LS V8 vehicle - and it wasn't the lightning struck vehicle!! Never on an LS1 f-body either. That's literally THOUSANDS of coil packs and only 1 single failure have I personally witnessed. It was also the only one the guys at the dealership could remember.

No need, waste of money.

 

Keep the stock one

 

I will trade my 14 MSD LS1 coil packs for your 8 factory ones. Eight good and six bad. I went back to my stock LS1 coils and lost no ET in the 1/8 mile this pass weekend. I have actually gone thru 7 MSD coils in about 3 years. Keep your factory coils and no reason to get new ones.

 

+1
Also:
Fastory Coils < MSD

 

Thanks for the advice again, guys.

 

there we go, fixed.

 

^^lol

 

I have a set of stock LS1 coils off my WS6 if any body need them

 

Stay with the stockers

 

150k on mine, havent expierenced any problems.

 

 

Here is my experience. I was lucky and I got MSD coils for free. They seem to work ok. I kind of wish I had requested something else.

I DO have a problem with slight knock under 2K but I can't prove my MSDs are doing it.

I sold my factory coils after a couple of months. But, ya know I can't prove my car is any worse or better.

Logic would say MSDs are better for boosted applications due to increased current. Increased current means a spark could resist increased pressures of a boasted motor. But, CD ignition isn't for everyone. They are notrious for a short spark. Note the multiple discharge on the side.

Anyways as for the durability of your coil packs... they are basically autotransformers. They don't have a definite life span as long as you aren't trying to put too much power through them.

 

I'll take em. I stock coils for customers who may have a need.