New Tempest four into two into one exhaust manifold for Reliant engines, free flowing final big bore 1+1/2" complete black finish heat resistant finish. Loud but not annoying, (easily clear dynamos and alternators.) Made with heavy gauge steel now have "Newmans" ported outlets,will fit on all standard engines and as they are "pre ported" you can match profiles with a diegrinder on your head for even better performance. Come without the stay/brace found on early reliants to brace the inlet manifold. NEW DESIGN, testing on a range of cars at moment, inital feedback is more revs with a big difference on inital take off, different to our four into one system with more torque and better mid range

will need some tweaking and adjusting for 3 wheelers they are difficult to fit, will not fit any 4 wheelers .