Join Date: May 2007
Location: sniffin' out the procomp threads
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The muffler is the biggest restriction, leaving the cat wont affect your warranyt, the full set up can. The dealers are really cracking down on stuff, we were real lax but here in the last few months with all the auro industry in turmoil they are looking to save every penny they can. We had a meeting this moring and basicly we cannot replace oil or coolant unless specified by the TSB or repair procedure. Its half *** I feel but its thier rules.
A 4" dp is tight in there, I have hell with the trucks I have to disturb the exhaust system and it has a 4" dp, near impossible to keep it from makling noise, and a lot of time the customer gets told we dont have to be responsible for it as its aftermarket.
If your having good luck with it dont mess with the thing IMO.
P51 headed 563
5.15 @ 134.89