JUST SOME HELPFULL INSITE,IF HAVING TO REPLACE YOUR LOWER INTAKE GASKETS (if you own a pontiac it will happen) DONT BUY THE GASKETS FROM A PARTS STORE FOR THEY ARE STILL THE CRAPPY PLASTIC ONES. GO TO A GM DEALERSHIP AND GET THE NEW UPDATED GASKETS WHICH ARE MADE FROM ALIMINUM, TRUST ME I JUST REPLACED MY LOWER AND UPPER INTAKE GASKETS AND THE NEW UPDATED GASKETS ARE 100% BETTER THAN THE ORIGINAL CRAP PLASTIC ONES. COST ALITTLE MORE BUT WELL WORTH IT. YOU CAN ALSO ORDER THESE GASKETS FROM ZZPERFORMANCE.COM ALSO BUY A NEW COOLANT ELBOW FOR 99.9% CHANCE IT WILL GET BROKE UPPON REMOVAL OF LOWER INTAKE.