Compression Ignition Addict
Join Date: Jul 2011
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there is no 5 inch downpipe. they are 4 inches. they will usually mate with either 4 and 5 inch dp back exhaust system.
removal of dp requires either unbolting trans, lifting cab or cutting factory dp.
its been said the a bigger dp lowers egts and improved flow/throttle response. i have cai tuner and dp back exhaust and theres practically no lag if any at all. hope that helps.
a bigger dp will a mod in the near future.
08 F250 KR CCSB Job 3 4x4 3.73, Mini Maxx, Flo Pro turbo back exhaust, Flo Pro egr delete with intake elbow, Flo Pro 3 inch ic pipe, aFe intercooler, BD Diesel track bar, DieselSite coolant and trans filters, Mishimoto radiator, AirDog II 165, No Limit intake, Rough Country dual SS, Rancho 9000XL, Nitto TG 325/50R22.