This item has been shown 0 times.
BMW E60 M5 Cat delete Headers Evolve Race Headers BMW E60 M5 / E63 M6 S85 V10 (LHD and RHD)
Evolve deCAT headers (exhaust manifolds)
performance gain approx. +30-35hp / +25-30 lb.ft
Permanent DECATTED headers
Fully assembled and welded with flange as a direct bolt-on solution to stock downpipes
The evolve GT header is built using the stock V10 headers with larger high flow 100-Cell HJS Catalytic converters. The stock headers incorporate a very small restrictive cat which compromises both power and torque through the entire rpm rangeAs you can see the CAT's are very large and present an excellent power increase through the rpm range (dyno graphs will be posted) The taper from the collector to CAT and CAT to flange are long and smooth aiding smooth air flow. HJS manufacture different grades of CAT and these are their premium quality ones. You will not fail an emissions test which is done by measuring C02 and hydrocarbon levels with a probe in the exhaust tail pipes.
Dyno Test (Applies to all below header systems also)
NOTE: There is a core charge of $1160.00 which is refunded once the replacement
core is shipped by to us. There will be a return label included in the package
Every buyer gets a MyStoreRewards invitation for cash back