The perfect m52 Exhaust?
Moderator: martauto
Iv just received a decent quote from Souhan.ie for a cat-back type exhaust fitting. As its a custom exhaust I could go for single 2.5" / twin 2", or other variations. I dont mind loosing some torque if it gets a better top end as this e30 is quickly becoming more of a track car than a road car. I have the usual mods done like BBTB, m50 intake. I still dont really want a loud exhaust tho. Whats the best spec for an m52 for top end hp?
A single 2.5" would be too small I'd have thought, I'd be using a 2x2". There's a 2x50mm (basically 2x2") E30 M3 exhaust that people use with good results iirc.
If cost is an issue, Jetex do universal parts in 2" that are pretty good value. I seem to remember the 2x2" system for my conversion cost about £180 in parts, plus some welding time - it was good enough for 290+bhp from my S50.
If cost is an issue, Jetex do universal parts in 2" that are pretty good value. I seem to remember the 2x2" system for my conversion cost about £180 in parts, plus some welding time - it was good enough for 290+bhp from my S50.
James
'91 325i Sport
'93 318i touring 16v
'91 325i Sport
'93 318i touring 16v
more issues than a dual 2" but far from impossible. its very commonly done. many run aftermarket cats and resonators etc and these are usually 4" OD this will be the lowest pointnickso wrote:Why bother with Cat back? Bin the Cat surely?
Doesn't single pipe have issues getting round the beam/trailing arm without some grounding ?
E30 325is with M20B31