What type of lid do you have????
I do also know that a few people have had issues with the lids. I just dont know the outcome of their issues. So they could of came out ok, but you usually never hear about the good.
The Best V8 Stories One Small Block at Time
I had a MTI lid on my 2000 TA - The fit was HORRIBLE - never sealed at the back, and like 2000ws6_104 said the company was horrible to deal with. Their attitude seemes to be that since I was only buying a lid and not able to spend thousands of dollars with them I wasn't worth their time. Times change and when I was able to spend more money on my car I shopped around for the company that was willing to spend time talking to me about what my plans for my car were and treated me like I was just as important as any other customer, no matter how large or small of an item I was buying. Thunder Racing has always been excellent in this regard.
That first (and only) purchase from MTI was 5 or 6 years ago and in the time since I have spent a lot of money on my cars. Everytime I buy anything I remember how I was treated when I couldn't and I always have as my first priority that I will buy from just about anybody except MTI. Sort of a vote with my hard-eatrned $$$.
No matter what brand lid you run....
Unclasp the lid....
Position or have someone shine a " bright " flashlight....On the rear of the lid....
Down low and under the neck....On both sides....
While they are doing that....You lift the front of the lid up just enough to peak inside....
Do you see the gap or the light shinning thru ??....
The odds are you do !....
This means you sucking dirty unfiltered air into your engine....
....PSJ
The one used by SLP for GM was the Donaldson " Blackwing " lid.
The Blackwing is the lid I now use....I use to have the regular SLP lid and found it leaked in the rear under the neck....The surface was very wavy and needed weather-stripping to seal.
PSJ
that's my lid. it came stock with the f-body along with the dual/dual. notice, it is NOT a blackwing lid. it is the same aftermarket lid that you get from SLP and was put on stock by the general.
here's a pick of my dual/dual that came with it:





















So I guess I will vote other since my lid isn't a choice.



